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Drinking too much coffee doubles mortality risk

Drinking too much coffee doubles mortality risk

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Drinking 2 or more cups of coffee daily may increase mortality rates in people with severe hypertension, researchers say. Alessia Pierdomenico/Bloomberg via Getty Images
  • A recent study in Japan found a connection between drinking 2 or more cups of coffee per day and increased mortality rates in people with severe hypertension.
  • Severe hypertension is another way of describing high blood pressure.
  • The cohort study, which included just over 18,000 men and women, lasted nearly 2 decades.
  • While the study authors found that 2 or more cups of coffee raised the risk, they did not find any risks associated with 1 cup of coffee or green tea for people with severe hypertension.

While many people cannot get started in the morning without coffee, a recent study indicates that some may need to practice caution with their coffee consumption.

The researchers found that drinking 2 or more cups of coffee per day may double mortality rates in people with severe hypertension.

They also noted that 1 cup of coffee is 8 ounces — and that anything beyond that may pose health risks in people with severe high blood pressure.

The results of the study were published in the Journal of the American Heart Association.

According to the American Heart Association(AHA), hypertension occurs when “the force of blood flowing through your blood vessels is consistently too high.”

Unhealthy lifestyle choices often lead to developing high blood pressure, such as eating foods high in cholesterol and not getting regular exercise. Additionally, health conditions like diabetes can factor into developing hypertension.

A blood pressure reading consists of two numbers: the systolic number (higher number) and the diastolic number (lower number).

The AHA includes five blood pressure categories:

  • normal blood pressure (less than 120 over less than 80)
  • elevated blood pressure (120–129 over less than 80)
  • high blood pressure or hypertension stage 1 (130–139 over 80–89)
  • high blood pressure or hypertension stage 2 (140 or higher over 90 or higher)
  • hypertensive crisis (higher than 180 over higher than 120)

According to the Centers for Disease Control and Prevention (CDC), high blood pressure can be a “silent killer” since people do not always experience symptoms and may not know they have high blood pressure unless they see a doctor regularly or self-monitor.

When high blood pressure is untreated, it can lead to a heart attack or stroke.

If someone is diagnosed with high blood pressure, they may treat it by making lifestyle changes or taking medications such as angiotensin-converting enzyme (ACE) inhibitors or calcium channel blockers.

The study authors used information from participants in the Japan Collaborative Cohort Study for Evaluation of Cancer Risk. They analyzed data from 18,609 people (6,574 men and 12,035 women).

The participants were 40 to 79 years old when the cohort study began between 1988 and 1990.

The cohort researchers took the participants’ blood pressure reading at the beginning of the study, as well as other medical background information and followed up with them over 18.9 years.

The coffee study authors were interested in how the participants’ coffee and green tea consumption habits factored into their blood pressure scores and heart-related deaths.

The researchers placed the participants into one of five categories based on their blood pressure readings (the categories vary somewhat from the AHA):

  • optimal and normal blood pressure (less than 130 over less than 85)
  • high‐normal blood pressure (130–139 over 85–89)
  • grade 1 hypertension (140–159 over 90–99)
  • grade 2 hypertension (160–179 over 100–109)
  • grade 3 hypertension (180 and higher over 110 and higher)

Since many participants did not have grade 2 and 3 hypertension, the researchers combined the data for these groups.

After placing the participants into categories based on their blood pressure readings, the researchers considered their coffee and green tea drinking habits. The participants indicated the frequency and amount of consumption.

For context, an 8-ounce coffee contains 95 to 200 mg of caffeine, making coffee more caffeinated than some energy drinks. Green tea contains approximately 35 mg of caffeine.

Over the course of the study follow-up, the researchers recorded 842 cardiovascular-related participant deaths.

The results of the study showed that people with grade 2 and 3 hypertension who drank 2 or more cups of coffee per day had twice the cardiovascular-related death mortality rate compared to people in the same category who did not drink coffee.

”These findings may support the assertion that people with severe high blood pressure should avoid drinking excessive coffee,” senior author Dr. Hiroyasu Iso, director of the Institute for Global Health Policy Research in Tokyo, told Medical News Today.

The study findings also showed that drinking 1 cup of coffee did not increase the risk for anyone across any blood pressure categories.

Just 1 cup of coffee can contain nearly 3 times the amount of caffeine as 1 cup of green tea, but the researchers did not detect issues with green tea regardless of the amount consumed.

The study authors believe this is due to the “mechanism underlying the beneficial effects of green tea,” which is the compound epigallocatechin-3-gallate, “the most abundant polyphenol in green tea.”

The authors noted that animal studies of green tea shows that epigallocatechin-3-gallate can positively affect oxidative stress, reduce inflammation, and improve lipid profiles.

“These beneficial effects of green tea catechins may partially explain why only coffee consumption was associated with an increased risk of mortality in people with severe hypertension despite both green tea and coffee containing caffeine,” the authors wrote.

“This study supports the implication that heavy coffee consumption can increase the risk of cardiovascular disease mortality among people with severe hypertension, while green tea consumption does not increase the risk,” Dr. Jayne Morgan, a cardiologist and clinical director of the Covid Task Force at the Piedmont Healthcare Corporation in Atlanta, GA, told MNT.

Yelena Wheeler, RDN, a clinical dietitian with the Measurement Instrument Database for Social Sciences (MIDSS) in Los Angeles, CA, also spoke with MNT about the study findings:

“The study pointed out that ‘heavy’ coffee consumption was associated with increased risk of cardiovascular mortality with people who were already suffering from severe hypertension. This seems somewhat of an obvious cause and effect; however, not finding any increased risk of CVD mortality amongst those in all categories who consumed green tea was an interesting twist.”

Wheeler added it would be interesting to see further research into the habits of people who consume coffee versus green tea, such as the types of jobs they hold or whether they practice mindfulness and meditation.

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Gardening may help reduce cancer risk, boost mental health

Gardening may help reduce cancer risk, boost mental health

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New research indicates that gardening provides various health and fitness positive aspects, which include a lessened hazard of continual conditions like cancer. Manu Prats/Stocksy
  • A new review shows that individuals who work in community gardens get different overall health benefits that may well support minimize the threat of long-term diseases like most cancers and can boost psychological health.
  • The randomized managed trial concerned 145 individuals who never ever gardened ahead of and tracked their physical and psychological wellbeing all through and after a increasing time.
  • Individuals eaten a lot more fiber, received a lot more training, and felt extra linked and less nervous as a result of their group gardening expertise.

Taking part in community gardening decreases the risk of building really serious health problems, including most cancers and mental overall health issues, in accordance to a the latest review.

Scientists at the University of Colorado Boulder (CU Boulder) have shown that people today receive several wellbeing-marketing added benefits from neighborhood gardening.

Gardeners increased their intake of fiber by ingesting far more refreshing make, received additional exercise tending a garden, and felt more related socially, all of which are protecting components towards most cancers, psychological overall health concerns, and different persistent ailments.

Former observational experiments have instructed that gardening, in normal, may well provide some of these benefits, but the CU Boulder study is the initially randomized controlled demo (RCT) investigating the profit of gardening, and local community gardening in distinct.

The analyze is released in The Lancet Planetary Overall health.

The researchers recruited 291 older people who experienced not gardened right before. Persons averaged 41.5 several years of age, and 34{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} recognized as Hispanic. Of the members, 18{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} ended up male (52 participants), and half arrived from reduce-revenue households.

The researchers carried out a few gardening waves spanning 1 12 months each and beginning in May well, just soon after the past frost in Denver and Aurora, CO, in which the gardens have been situated. Half of just about every wave’s individuals gardened, and 50 percent did not, serving as a manage team.

Each participant acquired an introductory gardening training course from Denver City Gardens and was allocated a conventional, 10-sq. meter neighborhood yard plot, as properly as seeds and seedlings.

The similar was supplied to the regulate-group people as payment for delaying their gardening for the system of the examine.

Direct study writer Jill S. Litt, Ph.D., professor of environmental research at CU Boulder, instructed Health care News Nowadays that just about every participant put in an ordinary of about 90 minutes a week gardening and frequented their garden at the very least 2 times during the week.

“We located that being new to gardening was not a barrier to staying successful at gardening, as our examine only included new gardeners,” Dr. Litt claimed.

Scientists assessed participants’ wellbeing just before the review and group assignment, at harvest time, and the following winter. People today done surveys concerning tension, anxiety, and diet and wore thigh-mounted accelerometers for 7 days at every evaluation.

In the review, the scientists discovered that gardeners eaten slightly more nutritional fiber than the regulate team, though however below the proposed stage of 25–38 grams per working day. They also exercised somewhere around 5 minutes much more at harvest time than the command team.

“I assume it is a fantastic examine, searching at just the logistics of how they did it,” Rebecca Crane-Okada, Ph.D., R.N., advanced oncology nurse and professor of oncology at St. John’s Most cancers Institute in Santa Barbara, CA, not involved in the analyze, advised MNT. “It was a really sophisticated analyze to implement.”

Dr. Litt claimed the analyze tackled an present investigate gap given that scaled-down observational reports suggesting a hyperlink to better health and fitness could not establish if gardening led to a extra wholesome way of living or if it was the other way close to.

She observed the research confirmed “that a holistic intervention this sort of as group gardening can have an affect on various outcomes — fiber, moderate-to-vigorous bodily action — and psychosocial health and fitness — anxiety and anxiety — in an acceptable and cost-effective way, for persons of different social, economic, and demographic backgrounds.”

Dr. Litt mentioned that gardening addresses multiple aspects that are important for lowering the danger of long-term sickness and selling over-all wellbeing.

In accordance to Dr. Crane-Okada, group gardening offers a likelihood to handle regarded “modifiable threat factors” for diseases this kind of as:

Denise Dillon, Ph.D., affiliate professor of psychology at James Cook University in Singapore, was not concerned in the research but has printed former research on the psychological health positive aspects of group gardening.

“In our exploration, individuals who engaged in neighborhood gardening scored better on particular subjective wellbeing and resilience than did individuals who gardened by itself at dwelling or those who engaged in non-gardening, team outside things to do, even with reporting identical amounts of perceived strain.”

– Denise Dillon, Ph.D., psychology professor

Dr. Dillon extra there is “ample evidence from throughout a variety of research paradigms to reveal benefits of direct exposure to normal environments for the purpose of restoration, whether or not physiological or psychological.”

There are hundreds of urban neighborhood gardens in the United States.

Portland, OR, for instance, has 4.45 group gardens per 1,000 men and women, and these kinds of gardens are not restricted to temperate regions — St. Paul, MN, has the next-finest density of local community gardens in the U.S., with 3.84 gardens for every 1,000 folks.

Dr. Crane-Okada credited the gains of local community gardening to remaining outdoors in character and fostering a connection to the earth. She observed that bodily action is needed to get ready, nurture, and harvest a backyard and that being a component of a community rewards psychological nicely-getting.

People today who have been diagnosed with a serious disorder like most cancers can also reward psychologically from time expended operating in a local community backyard, Dr. Crane-Okada reported.

“The nature of gardening, usually outdoor, entails actual physical exercise, a emphasis on something outside the house oneself — that’s why can also be a aware activity — may perhaps be performed in local community, as in this study, which can serve as an more social assistance,” she concluded.

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Hydration may be key to a longer life, lower risk of chronic disease

Hydration may be key to a longer life, lower risk of chronic disease

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Higher levels of serum sodium are an indicator of dehydration, which may lead to chronic disease and premature death, according to a recent study. Guille Faingold/Stocksy
  • A recent study hypothesized that optimal hydration may contribute to healthy aging in humans.
  • Researchers looked at levels of serum sodium in the body as an indicator of hydration.
  • The findings show that higher levels of serum sodium during middle age may contribute to the development of chronic disease and possibly premature death.
  • Further studies are still needed to determine the link between hydration and aging.
  • The correct amount of water a person should drink to stay hydrated may vary depending on their health and age.

A new study from researchers at the U.S. National Institute of Health (NIH) reports that middle-aged people who have higher serum sodium levels in their blood are more likely to experience poor health and a higher risk of early mortality.

Serum sodium levels may become elevated when a person has not consumed enough fluids. Healthy serum sodium levels range from 135–145 milliequivalents per liter (mEq/L).

The most usual cause for high sodium levels is insufficient water intake.

In addition, researchers found that participants with low serum sodium levels (less than 142 mEq/L) had up to a 50{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} increased risk of being older than their chronological age.

The findings of the study were recently published in eBioMedicine.

Researchers at the NIH’s Laboratory of Cardiovascular Medicine performed a cohort analysis of data from the 1985–2021 Atherosclerosis Risk in Communities study (ARIC).

At the time of enrollment, ARIC’s participants ranged from 45 to 66 years old. The study’s 15,752 participants were followed for 25 years.

For the new study, serum sodium served as a proxy for water consumption since high levels closely align with hypohydration or water insufficiency.

Natalia I. Dmitrieva, Ph.D., lead study author and NIH researcher in Bethesda, MD, told Medical News Today the study was motivated by earlier research from the authors, which showed that lifelong hypohydration “accelerated degenerative changes and shortened lifespan” in mice.

Dr. Dmitrieva explained that water-restricted mice lived 6 months less than sufficiently hydrated mice — this is about the equivalent of shortening a human lifespan by 15 years.

Recently developed biomarkers for measuring aging in humans made confirming these outcomes in humans possible, Dr. Dmitrieva noted. These include blood pressure, blood sugar, cholesterol, and other indicators that reveal how well a person’s cardiovascular, respiratory, metabolic, renal, and immune systems are functioning.

The original mouse findings are mirrored in the new study’s conclusion.

“Our study suggests that long-term habitual hypohydration increases the risk of developing chronic diseases later in life and dying at a younger age,” Dr. Dmitrieva said.

While conventional wisdom recommends 8 glasses of water — 64 ounces — each day, this amount is not sufficiently supported by evidence.

According to the Centers for Disease Control and Prevention (CDC), the optimal amount of water a person should consume daily depends on the individual.

Among young adults and middle-aged people, the average amount of water intake varies by age:

  • For ages 20-39, the CDC suggests an average of 51 ounces daily.
  • For ages 40-59, 43 ounces of water per day is the average.

Michelle Routhenstein, MS, RD, CDE, CDN, a heart health dietitian at Entirely Nourished in New York, not involved in the study, told MNT that some people may require less water than the average recommendations.

For instance, if people who have heart failure “drink too much water, it can cause fluid build up in the body, and contribute to shortness of breath,” Routhenstein said.

People with kidney failure, she added, may also drink less water since their kidneys are less equipped to maintain a balance of fluid in their bodies.

In contrast, some individuals may require more water, such as those with a higher body mass index (BMI).

But for many people, it’s also possible to consume too much water.

“When you drink too much water, your kidneys cannot get rid of the excess, and it can cause hyponatremia, a dilution of sodium in your blood, which can be a life threatening event,” Routhenstein said.

Dr. Dmitrieva noted that coffee, tea, and electrolyte beverages can count toward your hydration goals, “but generally, they should not be your main hydration source.”

“Choosing plain water or adding cucumber, lemon, or lime is most advisable as your main source of hydration for optimal heart health,” Dr. Dmitrieva said.

She added that water-rich foods, in which 90{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} or more of their content is water, are also good options. Hydrating foods include watermelon, cucumber, and strawberries.

“Oral rehydration involves more than just drinking water,” Dr. M. Ramin Modabber, an orthopedic surgeon at Cedars-Sinai Kerlan-Jobe Institute in Los Angeles, not involved in the study, told MNT.

Dr. Modabber, who served as medical director for the Tour of California road cycling race, noted that when a person is exerting themselves, they lose sugars and electrolytes, which need to be replenished.

In addition to water and sports drinks, he recommended coconut water, pickle juice, electrolyte-infused waters or electrolyte tablets, homemade electrolyte drinks, smoothies, fruit juices, or Pedialyte.

“Hydration is important for all ages, and a population survey finds that about 50{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of people do not drink recommended amounts, including children,” Dr. Dmitrieva said.

“This percent is even higher for older people, who tend to drink less because thirst sensation deteriorates as we get older.”

Dr. Dmitrieva suggested the best way to stay adequately hydrated is to keep track of how much fluid you drink each day. She advised that people take special care to drink enough in hot environments or when engaging in intensive sports activities.

“Weekend warriors [and] athletes demonstrate a wide variability in baseline physiology, overall health status, medical conditions, injuries, training regimens, and other factors,” Dr. Modabber added.

He recommended being vigilant for signs of dehydration, characterizing the most obvious and concerning symptoms as being “[reduced] sweat response, mental status changes, and decreased or absent urine output.”

“Pay particular attention to pre-hydration — ‘topping off the tank’ before endurance activities,” Dr. Modabber said.

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New oral anticoagulants may have lower bleeding risk

New oral anticoagulants may have lower bleeding risk

  • Cardiovascular sickness is the top bring about of dying globally, according to the World Wellbeing Organization (WHO).
  • As a consequence, tens of millions of sufferers all around the earth are treated with anticoagulants in the hope of stopping daily life threatening cardiovascular activities these kinds of as strokes, pulmonary embolisms, and heart assaults.
  • Anticoagulants made use of in scientific apply include things like warfarin, heparin, and direct oral anticoagulants (DOACs), this kind of as thrombin and issue Xa inhibitors. Even so, there may perhaps be a increased threat of bleeding in some clients acquiring DOACs.
  • Verseon, a corporation based in California, has designed a future-technology oral anticoagulant that has the likely to protect against undesired clots although preserving the body’s ability to prevent too much bleeding.

The main perform of anticoagulants is to reduce blood clots from forming. These drugs interfere with blood things the proteins accountable for the coagulation, or thickening, system.

There are numerous blood factors and diverse anticoagulants goal distinctive variables.

Sadly, anticoagulant prescription drugs do lead to facet results that might direct to severe difficulties, this sort of as abnormal bleeding.

To deal with this dilemma, Verseon, a company centered in California, has made numerous novel drug candidates for cardiovascular disorder. In their new investigate, posted in the European Journal of Medicinal Chemistry, the exploration workforce describes compounds from a novel course referred to as N-acylpyrazoles.

Their merchandise have been termed “Precision Oral Anticoagulants” (PROACs) and according to Verseon, they have “optimized several physicochemical homes — including efficiency, selectivity, and in vivo stability.”

“Verseon has made precision oral anticoagulants (PROACs) that can reduce possibly existence threatening blood clots devoid of escalating the hazard of bleeding,” Walter Jones, Head of Corporate Growth at Verseon, told Health care Information Right now.

“Hundreds of millions of cardiovascular condition patients globally need to have this sort of anticoagulants urgently,” Jones mentioned.

“The medicinal chemists at Verseon optimized the various qualities of the drug candidates to make them a lot more strong, secure, and selective. Although potency of a drug is important to its motion on the ailment, balance would make it probable to administer the drug with much less daily doses. Boosting the selectivity of a drug is vital in steering clear of adverse side effects.”

– Walter Jones

“Verseon’s drug belongs to a novel class of drug molecules that act by a various system on its focus on in the system. This system preserves hemostasis and is crucial to the reduced bleeding possibility demonstrated in ‘in vivo’ exams,” Jones spelled out.

The scientists note that PROACs do not inhibit platelet purpose which could clarify the reduce bleeding threat that may well be connected with these drug candidates. The enterprise highlights that these attributes make them excellent candidates for future anticoagulant therapies.

The thrombin inhibitors described in this paper are productive at preventing clots in animal models. In addition, they do not inhibit the thrombin-mediated activation of platelets. This is a crucial step to end damage-induced bleeding, that means these drug candidates have proven significantly reduced bleeding dangers in animal styles.

Whilst these solutions will need to be absolutely analyzed in human medical trials, Jones highlighted their prospective future applications.

“Patients with a heart issue identified as non-valvular atrial fibrillation, a extremely common type of [arrhythmia], are at danger of suffering strokes. At this time promoted anticoagulants have large bleeding chance. Verseon’s PROAC drug candidates, with their novel pharmacology, can potently cut down the chance of strokes with out elevating bleeding threat,” Jones explained.

“Another extremely huge client population who suffer from acute coronary syndrome can profit from lifelong simultaneous administration of antiplatelet prescription drugs and anticoagulants. Unfortunately, these types of twin remedy with at the moment marketed anticoagulants carries an unacceptable total of bleeding possibility,” he claimed.

“Verseon’s PROACs, with their exceptional mechanism of motion, intention to present a secure selection for lengthy-term twin treatment with antiplatelets. In excess of 51 million people in significant-revenue nations would reward from secure extensive-time period anticoagulant-antiplatelet twin treatment,” he extra.

Dr. Jayne Morgan, a cardiologist at the Piedmont Medical center/Healthcare, not involved in this investigation, highlighted the worries that sufferers expertise when obtaining anticoagulation therapies:

“Errors could lead to hemorrhage on one particular stop, or thrombosis on the other. Bleeding is the big issue which include rare problems this sort of as intracranial hemorrhage, or large GI bleeds.”

Dr. Mark Goldin, director of scientific trials at the Feinstein Institutes for Medical Investigation, also not aspect of this review, agreed and told MNT that “when medical practitioners prescribe anticoagulants, they must always harmony the have to have for therapy with the risks of bleeding that can take place.”

“The anticoagulants in this pre-clinical review are promising as they could have even lower bleeding hazard than normal solutions, these types of as issue Xa inhibitors (like Xarelto and Eliquis), which by now have fantastic basic safety profiles and do not commonly call for blood exam checking,” Dr. Goldin discussed.

Mellanie Real Hills, founder & CEO of the American Basis for Women’s Health and fitness and StopAfib.org, claimed that “patients who get anticoagulants have to harmony the risk of bleeding with the risk of stroke.”

“Patients now on anticoagulants must be very careful with their daily activities, such as making use of household knives in the kitchen, reducing applications for property get the job done, and collaborating in hazardous sporting activities and hobbies that can result in bleeding accidents,” she stated. “Some people today on anticoagulants have so substantially bruising from them that they have to go over up their torso and extremities due to humiliation around the bruising.”

While this new exploration is promising, Dr. Goldin urged caution:

“It is significant to be extremely careful in deciphering this early data, as these drugs have however to be analyzed in humans and will want to exhibit efficacy and security in massive clinical trials.”

Hills advocates for clients getting anticoagulant therapy. She said the novel anticoagulants “appear to have the very best of the two worlds,” potentially producing it attainable to prevent strokes devoid of the draw back of bleeding concerns.

“The fear of strokes and bleeds requires a mental and emotional toll on afib sufferers. This included stress worsens afib and boosts the toll afib will take on clients. Consequently, staying equipped to reside their life devoid of these problems would substantially increase their excellent of lifetime in so quite a few approaches,” Hills included.

When questioned how soon this new class of anticoagulant could be permitted for use in patients, Jones claimed:

“The initially drug candidate in our method is now going through stage I scientific trials. Our next candidate is about to enter medical trials. We hope our drug candidates to get acceptance in the subsequent 3 to 4 several years.”

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Extreme temperatures linked to greater mortality risk

Extreme temperatures linked to greater mortality risk

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Extreme heat as well as extreme cold can affect people with heart conditions. Alexi Rosenfeld/Getty Images
  • A multinational analysis of more than 32 million deaths from cardiovascular disease found that more people died on days with extreme temperatures— both hot and cold.
  • For every 1,000 cardiovascular deaths, 2.2 excess deaths were associated with extreme hot days, and 9.1 were associated with extreme cold days.
  • The researchers now want to see guidelines developed to help mitigate the impact of extreme temperatures.

The planet is enduring more frequent intense heat waves due to climate change, which is mostly caused by humans burning fossil fuels such as coal, oil, and gas. The last eight years have been the hottest on human record, according to the World Meteorological Organization.

Some research studies indicate that climate change may also be linked to severe winter weather, like that experienced in Texas in February of 2021.

An international consortium of researchers recently joined forces to study how climate change impacts cardiovascular health.

A paper about their efforts, which is published in Circulation, a flagship journal of the American Heart Association (AHA), explains that the researchers found more deaths on days when temperatures were at their highest and lowest.

The study suggests both extreme hot and extreme cold temperatures increase the risk of death among individuals with cardiovascular disease (CVD), like ischemic heart disease, stroke, heart failure, and arrhythmia.

On extremely hot days, the heart shifts blood from major organs to underneath the skin, where it is cooler.

“Sweating also happens,” Dr. Barrak Alahmad, lead author of the study as well as a research fellow at the Harvard T.H. Chan School of Public Health and mission scholar at the College of Public Health at Kuwait University in Kuwait City, explained to Medical News Today.

“This could lead to volume depletion that increases heart rate. Increased core body temperature will also increase the metabolic state and oxygen consumption. Then you might also [experience] fluid shifts and electrolytes imbalance (specifically, potassium, magnesium). All of these [cascade] in susceptible individuals…” he further explained.

In hot weather, people who are older, obese, have high blood pressure, or have a history of heart disease need to take precautions like avoiding the outdoors in the early afternoon and staying hydrated, according to the AHA.

Cold weather also causes problems for humans.

“Blood vessels will constrict, and skeletal muscles will increase tone to preserve and generate heat. This will increase blood pressure. Some researchers suggested that cold makes cholesterol crystals deposit in blood vessels and causes heart attacks. Other researchers showed that cold makes your blood more sticky, and that also increases the risk of heart attacks,” said Dr. Alahmad.

For this study, the team of researchers led by D. Alahmad used data collected by the Multi-County Multi-City Collaborative Research Network, an international collaboration of scientists looking for epidemiological evidence of associations “between environmental stressors, climate, and health.”

They analyzed more than 32 million cardiovascular deaths that occurred in 567 cities in 27 countries on five continents between 1979 and 2019. Researchers obtained city-specific daily temperatures from weather stations and climate reanalysis models.

For their analysis, researchers compared cardiovascular deaths on the hottest and coldest 2.5{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of days for each city with cardiovascular deaths on the days that had the optimal temperature (the temperature associated with the least rates of deaths) in the same city.

For every 1,000 deaths from CVD, the researchers found that extreme hot days resulted in 2.2 additional deaths, and extreme cold days accounted for 9.1 additional deaths.

“We now learned that for every 100 cardiovascular deaths, at least 1 additional death is from extreme cold and hot days. Considering that cardiovascular disease is the leading cause of death globally, this essentially translates into a very large burden,” Dr. Alahmad said.

Of all the types of heart disease, heart failure caused the greatest number of deaths from extreme temperatures, the researchers found.

Meanwhile, ischemic heart disease accounted for 37{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of CVD deaths studied by researchers. They estimate that about 1{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of all ischemic heart diseases “are attributed to extreme temperatures alone.”

The researchers did not find a significant association between extreme heat and death from arrhythmia. The researchers write that this may be caused by arrhythmia being misclassified as the cause of death when the death was actually caused by ischemia or cardiomyopathy.

Dr. Don Pham, interventional cardiologist at Memorial Hermann in Houston, Texas applauded the study for providing “a new and interesting approach to prevention.”

“I think this serves as a good reminder to patients during the winter or summer months [that] when the weather has drastically [changed] in your region to pay attention to any new symptoms that occur,” he told MNT.

Although the study looked at cities in many countries, some parts of the world received less attention.

“Readers must be cautioned when interpreting our findings as global estimates since some regions were underrepresented in our data such as South Asia, the Middle East and Africa,” Dr. Alahmad told MNT.

“Extreme temperatures might have a larger impact in these underrepresented regions,” he added.

Future research needs to look at the social determinants of health and climate change, said Dr. Martha Gulati, director of preventive cardiology at the Smidt Heart Institute at Cedars-Sinai in Los Angeles, California, and president of the American Society for Preventive Cardiology.

“[T]he persons most vulnerable already for CVD may be the persons living without [air-conditioning] or without heat. Perhaps having jobs that expose them to these extreme temperatures too.”
— Dr. Martha Gulati

Dr. Gulati would also like to see research that collects data on incident cardiovascular disease.

“[T]he cost to global health systems is affected by more than just mortality. Additionally, on a population level, the number of people living with cardiovascular disease, if increasing as a result of climate change, is important when creating predictive models for cardiovascular disease burden,” she told MNT.

Professional cardiology organizations need to draft guidelines about extreme temperatures and cardiovascular health, Dr. Alahmad argued.

“We can provide exact directions to healthcare providers on what they should advise their patients,” he told MNT.

Dr. Gulati, on the other hand, believes more data needs to be collected before this step can be taken.

“But I do think that cardiologists and our national and international societies need to take a stand about climate change and also lead and advocate for our countries to address climate change in order to protect human health,” she said.

In September, Dr. Gulati argued in a piece for The American Journal of Preventive Cardiologythat the cardiology community must work to affect public policy to offset the impact of climate change.

“Rising temperatures, extreme weather, increases in greenhouse gasses (GHG), and rising sea levels are threatening human lives and dramatically impacting cardiovascular health,” she wrote.

Heart disease is the leading cause of death globally, according to the World Health Organization. That said, death rates from cardiovascular disease (CVD) have declined since the 1960s.

In the United States, that can be contributed to public health interventions that reduced smoking and the consumption of dietary fat along with improvements in medical care, according to the Centers for Disease Control and Prevention.

“It [is] a great public health success story,” Dr. Alahmad told MNT.

Cardiologists and public health officials now need to look at the risk climate change poses to cardiovascular health, Dr. Alahmad stressed.

“We need to be on top of emerging environmental exposures. In this rapidly changing climate and [at an unprecedented] pace of warming, it is not the time to be asleep at the driving wheel.”
— Dr. Alahmad

It’s past time to set alarm bells ringing, agreed Dr. Gulati.

“If we do not reverse the course urgently, the impact on human health, particularly heart health, will be dire,” she told MNT.

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Plant-based diet linked to lower risk in men

Plant-based diet linked to lower risk in men

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More evidence emerges in guidance of the notion that a wholesome plant-based diet regime is connected to a lessen possibility of bowel most cancers. Impression credit rating: Jimena Roquero/Stocksy.
  • Colorectal cancer is the 3rd most typical most cancers in the United States.
  • The chance of establishing colorectal cancer is greater by obese or weight problems, cigarette smoking, and a food plan significant in crimson or processed meats.
  • Including loads of entire grains, new fruit, and vegetables in one’s food plan can decrease this danger, present investigate has demonstrated.
  • A huge examine has now discovered that, in gentlemen, a diet that is substantial in nutritious plant-centered food items is linked with lower colorectal most cancers threat.

Colorectal cancer, also acknowledged as bowel, colon, or rectal most cancers, is the 3rd most commonly identified and the 2nd deadliest most cancers in the United States.

Most folks who acquire a colorectal most cancers diagnosis are in excess of the age of 50, despite the fact that it can have an impact on more youthful persons, much too.

In recent many years, instances in older men and women have started to decline, but the incidence among the youthful men and women is raising. Even so, these variations may possibly be due to additional efficient cancer screening.

The threat of colorectal most cancers increases with age. Other hazard components people today cannot influence are a family members heritage of colorectal cancer, inflammatory bowel diseases — such as Crohn’s sickness — and sure genetic syndromes.

There are, nonetheless, a lot of life style things that also affect a person’s danger of colorectal cancer. Components that are possible to improve the danger include:

  • a diet reduced in fiber, fruit, and veggies
  • lack of bodily activity
  • a diet superior in fat and pink or processed meat
  • over weight and obesity
  • tobacco use and major liquor intake.

Quite a few reports have investigated the relationship concerning diet plan and colorectal cancer, discovering that the common Western diet plan that is high in excess fat, red meat, and processed meat will increase the risk.

Minimizing these foods and rising foods high in nutritional fiber is affiliated with a reduction in hazard.

Plant-based food items have a tendency to be large in nutritional fiber, but only in an unprocessed point out.

Now, a research that seems in BMC Medicine has found that a diet plan large in balanced plant-primarily based foods — complete grains, refreshing fruit, and vegetables — is linked with a decreased chance of colorectal cancer in men.

Unhealthy plant-based foodstuff — refined grains, fruit juices, and included sugars — had no helpful influence on cancer threat.

“This American examine adds to tons of existing proof on the added benefits of taking in a balanced diet higher in fruit, vegetables and fiber for each men and women.”

– Beth Vincent, health info supervisor, Most cancers Research Uk (CRUK)

The research group integrated 79,952 guys and 93,475 females who have been followed up for an ordinary of 19.2 several years. All members had been from Hawaii or the Los Angeles area and were being aged amongst 45 and 75 years at enrolment. The group integrated persons of African American, Japanese American, Native Hawaiian, Latinx, and white volunteers.

At the commence of the research, researchers assessed participants’ common diet program with a self-claimed questionnaire.

Members experienced to report how generally and how significantly they ate out of extra than 180 distinct foodstuff and drinks. They chose from four portion dimension selections, and frequencies ranging from never to 4 moments a day.

From the responses, the scientists calculated day by day electrical power and nutrient intakes, then calculated a few plant-based diet program indices — general (PDI), healthful (hPDI), and unhealthful (uPDI).

The researchers described complete grains, fruits, veggies, vegetable oils, nuts, legumes, tea, and coffee as healthful plant-based food items. Fewer healthier plant-primarily based foodstuff included refined grains, fruit juices, potatoes, and additional sugars.

To realize a higher hPDI score, contributors experienced to have a substantial ingestion of healthier plant-based mostly foods and a very low ingestion of fewer nutritious plant-dependent food items.

In general, plant-centered diets, specifically wholesome plant-centered diet plans, were connected with a minimized danger of colorectal cancer in adult males, but not in females. Harmful plant-based diet plans did not show up to lower the hazard.

For healthier plant-primarily based weight loss plans, the affiliation was more powerful in Japanese American, Native Hawaiian, and white men than in all those from other teams.

The researchers counsel that “the benefits from plant-based mostly weight loss plans may possibly differ by sex, race and ethnicity, and anatomic subsite of tumor.”

The review experienced a huge sample sizing, lengthy stick to-up time, and racial and ethnic range in the research inhabitants. On the other hand, the authors admit some restrictions of the review, such as feasible assortment bias in who responded to the questionnaires and the detrimental scoring of all animal-dependent food items.

Quite a few other scientific studies have proven that some animal-based foodstuff may well truly be effective. Two assessments have found that equally fish and dairy solutions may possibly reduce the threat of colorectal most cancers.

Beth Vincent argued that the review results really should be seen with caution:

“The study attempted to examine ‘healthy plant foods’ and ‘unhealthy plant foods’ and observed a url with bowel most cancers in adult males. But mainly because of the style and design of the research, the authors by themselves admit we just can’t study as well significantly into their results. The examine relied on persons remembering what they had eaten up to a yr back. It also made the assumptions that participants’ diet plans stayed the exact same over several years, and that all meat and animal items were being harmful — which isn’t the situation.”

This study provides to the expanding proof that diet plan and way of life participate in a important position in most cancers possibility.

Vincent agreed, providing the next tips: “Eating a nicely-well balanced eating plan can assistance with keeping a healthy bodyweight, which lowers the possibility of most cancers. Not cigarette smoking, cutting down on liquor, and keeping protected in the solar are other significant techniques to minimize your cancer hazard.”

One particular study indicates that up to 35{cfdf3f5372635aeb15fd3e2aecc7cb5d7150695e02bd72e0a44f1581164ad809} of cancers are linked to diet plan. And diet regime can drastically affect the risk of colorectal cancers.

The American Cancer Society endorses that to decrease colorectal cancer chance, a person ought to involve tons of veggies, fruits, and whole grains, and restrict the quantity of meat they take in.

Prof. Jihye Kim, from Kyung Hee University, who is 1 of the review authors, says that:

“We speculate that the antioxidants found in meals this kind of as fruits, vegetables, and total grains could add to reducing colorectal most cancers danger by suppressing persistent swelling, which can guide to most cancers. As men are inclined to have a bigger chance of colorectal most cancers than ladies, we suggest that this could help describe why taking in higher quantities of wholesome plant-based mostly meals was connected with reduced colorectal most cancers hazard in gentlemen but not women of all ages.”

The authors’ summary that “improving the top quality of plant meals and minimizing animal meals intake can assist reduce colorectal cancer” may perhaps be a very little optimistic, but their examine unquestionably adds to the proof that a healthful eating plan can aid to minimize over-all cancer danger.