In order to develop the model, scientists examined climatic and meteorological data along with hospital admissions for heart attacks, strokes, and heart failure across a ten-year period. They examined information on almost 24 million Canadians, who were split up into five age groups that went from 18 to 70 years old. A higher risk of hospitalization for one of the major cardiovascular illnesses has been associated with lower temperatures, higher wind speeds, atmospheric pressure, higher levels of precipitation, and higher pollution levels, especially in the elderly population.
The scientists suggest that one day, the environmental characteristics they found may be utilized to estimate the prevalence of cardiovascular issues, allowing for more effective planning during times of high risk. Additionally, during periods of bad weather and low air quality, people should be reminded to stay indoors and exercise particular caution.
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According to a recent study, long-term exposure to the noise produced by cars, trucks, trains, and airplanes may increase the risk of cardiovascular disease.
The Harvard-led examination of three decades' worth of data from 114,116 women involved in the Nurses' Health Study was published online by Environmental Health Perspectives on December 4, 2023. Researchers evaluated the relationship between noise levels where participants lived and their incidence of cardiovascular disease using a geospatial noise model developed by the National Park Service. This model estimates noise levels in different locations using data gathered from monitoring sites across the United States.
Researchers discovered that participants' long-term risk of cardiovascular illness increased with the amount of transportation noise they were exposed to. There was a 4% rise in cardiovascular issues such coronary artery disease and stroke for every four dB increase in noise above a baseline level. The authors of the study noted that prior research has similarly connected noise exposure to transient alterations in circulation, such as blood pressure, heart rate, and blood vessel narrowing.
This research it still being watched.
Photo by Andrea Piacquadio
An increased body mass index (BMI) is a significant risk factor for osteoarthritis development. However, a recent study indicates that being overweight increases the risk of developing inflammatory joint diseases like rheumatoid arthritis.
The study included around 362,000 people who were members of the UK Biobank, a sizable biological database, and was published online by the journal Arthritis and Rheumatology on May 23, 2023. In order to determine a participant's risk of developing any of five joint conditions—rheumatoid arthritis, osteoarthritis, psoriatic arthritis, gout, and inflammatory spondylitis, a form of spinal arthritis—researchers looked at the relationship between the participant's BMI and these conditions. Apart from osteoarthritis, inflammation is the primary cause of most other joint illnesses.
Compared to those in the normal BMI range, participants with higher BMIs (substantially greater than the "normal" BMI range of 18.5 to 24.9) had higher incidences of psoriatic arthritis (80%), gout (73%), inflammatory spondylitis (34%), and rheumatoid arthritis (52%). The authors of the study found that maintaining a healthy weight can help lower the chance of acquiring a joint illness.
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Socializing has been linked to a lower chance of dying young, among other health benefits. However, how much socialization might prolong one's life? On March 6, 2023, the Journal of Epidemiology and Community Health published a sizable Chinese study online that suggests—possibly not at all. Researchers assessed the well-being, way of life, and self-reported social engagement of almost 28,000 individuals (average age: 89) whose survival was monitored for a mean of five years or until they passed away. People lived longer during the first five years of life, the more socialized they were. The people who socialized daily, weekly, monthly, or infrequently all lived longer than the previous group.
Recent research has reignited the discussion on the impact of alcohol on health. The question remains: is moderate drinking beneficial for your heart, or should you abstain as you get older?
The answer is not straightforward. "There's solid evidence that moderate drinkers who have one to two drinks per day tend to live longer," says Eric Rimm, a professor at Harvard T.H. Chan School of Public Health. However, it's still unclear whether this longevity is directly linked to alcohol, other lifestyle factors, or a combination of both.
Moderate alcohol intake is believed to raise levels of "good" HDL cholesterol, which is associated with a reduced risk of heart disease. It may also help prevent the formation of small blood clots that can lead to heart attacks and strokes.
A new study suggests that women who suffer from migraine headaches prior to becoming pregnant may be at greater risk for pregnancy complications that could endanger their health or that of their unborn child.
The Harvard-led research, which was published online by Neurology on January 19, 2023, analysed 20 years' worth of data from Nurses Health Research II, which included 30,555 pregnancies among 19,694 nurses in the United States. The number of women who reported being diagnosed with migraine, as well as the form of migraine, were evaluated by the researchers. In addition, participants reported whether they had experienced medical complications during pregnancy.
The Impact of Junk Food on Deep Sleep: How Your Diet Affects Restful Nights
Are you looking to improve the quality of your sleep? It might be time to reconsider your junk food habits. Recent research has revealed that consuming an unhealthy diet high in processed foods can have a detrimental effect on deep sleep, also known as slow-wave sleep. This particular stage of sleep plays a crucial role in the release of growth hormone, which aids in the repair and development of muscles, bones, and other tissues. Additionally, deep sleep contributes to enhanced cognitive function and memory.
A study, published online on May 28, 2023, in the prestigious journal Obesity, examined the sleep patterns of 15 healthy men with regular sleep routines, averaging seven to nine hours per night. These participants were divided into two groups: one consumed a healthy diet, while the other followed an unhealthy diet for a week. Although both diets provided the same number of calories tailored to each individual's daily needs, the unhealthy diet contained higher levels of sugar and saturated fat, along with a significant portion of processed foods.
New research suggests that consuming more foods rich in magnesium could improve brain health, particularly in women. The study, published in the European Journal of Nutrition, involved over 6,000 adults aged 40 to 73 in the UK. Participants completed an online survey multiple times over 16 months, which allowed researchers to calculate their average daily magnesium intake based on their consumption of various magnesium-rich foods such as leafy greens, legumes, seeds, nuts, and whole grains. MRI imaging was used to measure participants' brain volumes. The findings revealed that individuals who consumed more than 550 milligrams of magnesium per day had larger brain volumes, equivalent to a brain age approximately one year younger by the age of 55, compared to those who consumed about 350 milligrams of magnesium daily. These effects were more pronounced in women compared to men. The researchers noted that less age-related brain shrinkage is associated with better brain function and a reduced risk of dementia in the future
Similar brain changes are observed in individuals with obesity and those with Alzheimer's disease, according to a recent analysis. The study, published on January 31, 2023, in the Journal of Alzheimer's Disease, involved a review of brain scans from over 1,300 participants. Among them were 341 individuals with Alzheimer's, 341 individuals with obesity, and 682 individuals without either condition. The scans revealed comparable thinning in brain regions associated with learning, memory, and judgment in both the Alzheimer's and obesity groups. While cognitive tests taken by obese participants, defined as having a body mass index of 30 or higher, did not show evident mental deficits, the researchers acknowledged that these tests might not capture subtle changes in thinking abilities related to brain alterations.
This research is still on the watch
A new study reveals that the risk of arterial blockage in the heart and neck increases in proportion to one's salt intake. Heart attacks and strokes can occur when plaque builds up in the arteries, a condition known as atherosclerosis.
There were 10,788 patients between the ages of 50 and 64 included in the study that was published in the European Heart Journal Open in March 2023. Researchers calculated participants' salt intake by analysing 24-hour urine samples for sodium levels (sodium is the major component of salt). All of the study participants had cardiac ultrasounds and other imaging procedures to check for atherosclerosis.
There were 10,788 patients between the ages of 50 and 64 included in the study that was published in the European Heart Journal Open in March 2023. Researchers calculated participants' salt intake by analysing 24-hour urine samples for sodium levels (sodium is the major component of salt). All of the study participants had cardiac ultrasounds and other imaging procedures to check for atherosclerosis.
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Have two minutes to work out? Then you have sufficient time to reduce your risk of heart disease, cancer, and potentially premature death, according to a study published online by the European Heart Journal on October 27, 2022.
Researchers examined over 72,000 adults, with an average age of 62, who lacked cardiovascular disease or cancer. The participants wore a wrist-worn activity monitor for one week. The device measured their total activity, vigorous activity, and the frequency of at least two minutes of vigorous activity. (During vigorous exertion, it is typically impossible to speak in complete sentences.)
According to new research, bariatric surgery may result in long-lasting improvements in pain and physical abilities.
What was the focus of the study?
This study followed approximately 1,500 individuals for up to seven years after they underwent Roux-en-Y gastric bypass or sleeve gastrectomy, the two most common bariatric surgery procedures. The majority of participants were white (82%) and female (80%), while Hispanic (4%) and black (11% of participants) were underrepresented. They ranged in age from 38 to 55, and all were diagnosed with severe obesity (a body mass index of 35 or greater).
Participants completed questionnaires regarding their physical abilities, pain, health, and quality of life prior to surgery. Many were also evaluated for physical function and mobility, such as their ability to walk 400 meters in less than seven minutes. Some reported severe or even incapacitating knee or hip pain, an osteoarthritis symptom. Annual assessments were conducted for up to seven years.
What were the results?
41% to 64% of participants reported improvements in body pain, physical function, and objectively measured walking ability at the conclusion of the study. In addition, between 65 and 72 percent of those with osteoarthritis reported less knee and hip pain. In addition, 41% of those who were unable to walk 400 meters in less than seven minutes prior to surgery could now do so.
Not every measure got better. For example, the number of back pain pills taken before and after weight loss surgery stayed the same. Not everyone experienced improvements in pain and physical function, which is also noteworthy. It's also difficult to say whether the positive changes were brought on by surgery and whether one type of surgery was superior to the other because there was no control group that did not undergo weight loss surgery.
The proven benefits of weight loss surgery include lowering blood pressure, improving blood sugar levels, and reducing cardiovascular risk. Now, data from a large multicenter study of bariatric surgery in the United States indicates that permanent improvements in pain and physical function may be added to this list.
iStock photos
What was the focus of the study?
This study followed approximately 1,500 individuals for up to seven years after they underwent Roux-en-Y gastric bypass or sleeve gastrectomy, the two most common bariatric surgery procedures. The majority of participants were white (82%) and female (80%), while Hispanic (4%) and black (11% of participants) were underrepresented. They ranged in age from 38 to 55, and all were diagnosed with severe obesity (a body mass index of 35 or greater).
Participants completed questionnaires regarding their physical abilities, pain, health, and quality of life prior to surgery. Many were also evaluated for physical function and mobility, such as their ability to walk 400 meters in less than seven minutes. Some reported severe or even incapacitating knee or hip pain, an osteoarthritis symptom. Annual assessments were conducted for up to seven years.
What were the results?
41% to 64% of participants reported improvements in body pain, physical function, and objectively measured walking ability at the conclusion of the study. In addition, between 65 and 72 percent of those with osteoarthritis reported less knee and hip pain. In addition, 41% of those who were unable to walk 400 meters in less than seven minutes prior to surgery could now do so.
Not every measure got better. For example, the number of back pain pills taken before and after weight loss surgery stayed the same. Not everyone experienced improvements in pain and physical function, which is also noteworthy. It's also difficult to say whether the positive changes were brought on by surgery and whether one type of surgery was superior to the other because there was no control group that did not undergo weight loss surgery.
We're keeping tabs on this research.
A review article that appeared on September 1, 2022 in the International Journal of Cardiology suggested that psychological problems like anger, worry, sadness, and work stress may increase the risk of having the heart rhythm disease known as atrial fibrillation (afib).
The researchers analysed 13 studies with a combined participant population of more than 5.3 million participants. They discovered that the two most prevalent mental illnesses, anxiety and depression, were linked to an increased risk of afib by 25% and 10%, respectively. Anger was associated with a 15% increase in risk of Afib and significant work stress with an 18% increase in risk.
The researchers analysed 13 studies with a combined participant population of more than 5.3 million participants. They discovered that the two most prevalent mental illnesses, anxiety and depression, were linked to an increased risk of afib by 25% and 10%, respectively. Anger was associated with a 15% increase in risk of Afib and significant work stress with an 18% increase in risk.
We're keeping an eye on the research
A study published in the June 1, 2022 issue of JAMA Network Open found that the risk of stroke went up when people sat for long periods of time but went down when they moved around more, even if they just did simple things like housework.
More specifically, 7,607 adults participated in the study by wearing an accelerometer (a device that records how fast you move) on their hips for seven days. Typically, these people were 63 years old. Two hundred forty-six people had strokes during the average 7.4-year follow-up period.
It was found that people who sat for 13 or more hours a day during the first week of motion tracking had a 44% higher risk of having a stroke than those who sat for less than 11 hours a day. There was also a higher risk when people sat for more than 17 minutes at a time, compared to when they sat for less than eight minutes at a time.
Unsurprisingly, stroke risk was 43% lower in people who engaged in moderate-to-vigorous physical activity for at least 25 minutes each day. But compared to spending less than three hours a day doing light physical activity (like cleaning or doing the dishes), spending four to five hours a day doing light physical activity (like cleaning or doing the dishes) cut the risk of stroke by 26%. Photo by Tima Miroshnichenko
If you never start your day without a cup of coffee, you may be interested to hear that a new study suggests that drinking this very popular drink may make you much less likely to die in the coming years.
The study, which was published online by Annals of Internal Medicine on May 31, 2022, analysed data about coffee consumption from more than 170,000 people (average age 56) in the United Kingdom who did not have cancer or cardiovascular disease at the beginning of the study. On average, researchers followed participants for seven years. In addition, they considered lifestyle, diet, gender, age, and ethnicity.
People who consumed 1.5 to 3.5 cups of coffee per day, even with one teaspoon of added sugar per cup, were 30% less likely to die during the study period compared to those who did not consume coffee. It did not appear to matter whether the coffee contained caffeine or not, but the benefit diminished after 4.5 cups per day.
Is this something you've heard before?
You're sitting at your computer, staring at a wall of e-mails. You hit "send" after finishing your response and reach for the bulging tuna wrap on your desk. You set the wrap down, grab a handful of chips, and open the next message after a few bites, chewing while glancing at the screen. Before you know it, you've finished your meal without even realizing it.
A small but growing body of research suggests that eating more slowly and thoughtfully may help with weight issues and may steer some people away from processed foods and other less-healthy options.
This alternative method is known as "mindful eating." It is based on the Buddhist concept of mindfulness, which entails being fully aware of what is going on inside and outside of you at the time. Mindfulness techniques have been proposed in other areas as a way to relieve stress and alleviate problems such as high blood pressure and chronic gastrointestinal issues.
What is Mindful eating?
Mindful eating (i.e., paying attention to our food intentionally, moment by moment, and without judgment) is an approach to food that emphasizes sensuous awareness of the food and the experience of eating. It is unrelated to calories, carbs, fat, and protein.
Mindfulness in eating entails noticing the colours, smells, flavours, and textures of your food; chewing slowly; eliminating distractions such as TV or reading; and learning to cope with food guilt and anxiety. Some aspects of mindful eating appear to be influenced by the ideas of Horace Fletcher, an early twentieth-century food faddist who believed that chewing food thoroughly would solve a variety of health problems.
The mind-gut relationship
Digestion involves a complex series of hormonal signals between the gut and the nervous system, and it appears that the brain takes about 20 minutes to register satiety (fullness). If someone eats too quickly, satiety may occur after overeating rather than stopping it. There's also evidence that eating while distracted by activities like driving or typing may cause digestion to slow or stop, similar to how the "fight or flight" response works. And if we don't digest well, we may be missing out on the full nutritive value of some of the food we eat.
In her 2010 book Savor: Mindful Eating, Mindful Life, co-written with Zen master Thich Nhat Hanh, nutritionist and Harvard School of Public Health lecturer Lilian Cheung lays out the rationale for mindful eating as a way to lose weight. The book, which combines science and Buddhist philosophy, has spawned a thriving Facebook page where people share recipes and other healthy living advice.
Stephanie Meyers, a dietician at Dana-Farber Cancer Institute, uses mindfulness techniques to assist cancer patients with their diets in a variety of ways. For example, she will encourage head and neck cancer survivors to meditate on food as they make the sometimes difficult transition from a feeding tube back to eating. Patients could practice this meditation by biting into an apple slice, closing their eyes, and focusing on the sensory experience of tasting, chewing, and swallowing.
According to new research, routine mammograms, which are used to check for breast cancer, may also reveal information about a woman's risk of heart disease.
On mammograms, white patches or lines indicate calcium buildup in the breast arteries. This type of calcification differs from the calcification of the coronary arteries, which is recognized to be a sign of increased cardiovascular risk. Researchers tracked 5,059 postmenopausal women (ages 60 to 79) for six and a half years for this study. They discovered that women with breast artery calcification were 51 per cent more likely than women without calcification to develop heart disease or have a stroke. Circulation: Cardiovascular Imaging published the study on March 15, 2022.
Is growing older a positive or negative experience for you? According to a study published in The Journal of the American Medical Association, having a positive attitude toward ageing may aid in your recovery from a health setback. A Connecticut health plan provided 598 patients (mostly women) for the study. Over the course of ten years, participants were interviewed once a month and completed home-based assessments. The words individuals chose to describe growing older were utilized to assess their age preconceptions (ranging from positive terms like "spry," to negative terms such as "decrepit"). People with a positive attitude about aging were 44 per cent more likely than those with a negative attitude to recover from handicap. They were also better at going about their everyday routines. More research is needed to see if initiatives aimed at changing people's views about aging might help older people live more independently.
According to a recent survey, one in every five people owns a smartwatch or fitness tracker. These wrist-worn monitors are a convenient way to track your daily steps, and they're likely more accurate than the tally on your smartphone, which you may not have with you at all times. Most wearable devices also provide a variety of other data, such as your heart rate, walking speed, and so on.
But does using one have an impact on how active people are? The answer is yes, according to the largest study on the subject to date (see "Fitness trackers and activity levels: What's the evidence?"). Regular physical activity is essential for a healthy heart, and the improvements seen in this study could potentially make a difference, according to Dr Megan Wasfy, a cardiologist at Harvard-affiliated Massachusetts General Hospital's Cardiovascular Performance Laboratory.
"The increase in moderate-to-vigorous physical activity was close to 50 minutes per week, which is one-third of the 150 minutes recommended by federal activity guidelines," Dr. Wasfy says. The extra 1,200 daily steps taken when people wore trackers were roughly the same as the number of steps linked to a longer life in several studies. 10,000 steps a day has been recommended as a daily goal for a long time, but research shows that 8,000 steps a day is almost as good for your health, especially in older people.
What is the evidence for fitness trackers and activity levels?
A group of Danish researchers looked at the evidence and analyzed it to find out how feedback from wearable fitness trackers affects how much people work out and do other things.
They found 121 different studies involving nearly 17,000 mostly healthy adults ages 18 to 65. The participants' median age was 47, and the majority were female. The study's intervention periods had a median duration of 12 weeks.
Researchers discovered that using physical activity monitors led to an extra 1,235 steps per day and 49 minutes of moderate-to-vigorous physical activity per week on average. They also stood for an additional 10 minutes per day, though this was insignificant. The study was published in The BMJ on January 26, 2022.
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A new follow-up study looked at death rates from cancer, cardiovascular disease, and all causes in later years, and the results for each group were surprising in various respects.
What are the benefits of slowing or preventing diabetes?
Diabetes type 2 is one of the most common long-term conditions in the world. It can lead to heart disease, nerve damage, eye issues, and renal problems over time, increasing the risk of disability and death. If a person's blood tests reveal that they have prediabetes, well-tested strategies can help them delay or prevent the onset of type 2 diabetes. This could help individuals live longer and better lives.
What did the follow-up research reveal?
The findings of the original study suggest that both lifestyle changes and metformin medication can significantly reduce the risk of developing diabetes in people with prediabetes. The risk was reduced by 58% and 31%, respectively when compared to the control group.
The original DPP cohort of 3,234 people was invited to stay in the Diabetes Prevention Program Outcomes Study, a follow-up observation Study (DPPOS). Most of the people in the study have been followed for more than 20 years, giving researchers a unique chance to look at several important health outcomes.
After an average of 21 years, the researchers looked at participant fatalities from any cause, cancer, or cardiovascular disease. Researchers found no difference in death rates between the people in the intensive lifestyle arm of the study and the people in the metformin arm of the study compared to the people in the control group.
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