Too Much Too Little Sleep Linked to Elevated Heart Risks in People Free from Disease - خواب کافی نه افراط نه تفریط

People who clock six to seven hours of sleep a night had the lowest chance of dying from a heart attack or stroke when compared with those who got less or more sleep, according to a study being presented at the American College of Cardiology’s 70th Annual Scientific Session. This trend remained true even after the research team accounted for other known conditions or risk factors for heart disease or stroke.
The study, according to researchers, is the first to explore the association between baseline cardiovascular risk and duration of sleep and adds to mounting evidence that sleep—similar to diet, smoking and exercise—may play a defining role in someone’s cardiovascular risk.

Release date: 05 May 2021
Source: American College of Cardiology

Parks Not Only Safe but Essential During the Pandemic - فضاهای سبز در ایام کرونا

Parks played an important role for people seeking respite from the toll of social isolation during the pandemic, and according to new research from Drexel University, they did so without increasing the spread of COVID-19. The study looked at how people used 22 parks in Philadelphia and New York during the height of the pandemic and it found no strong correlation between park use and the number of confirmed cases in surrounding neighborhoods.

Published in the Journal of Extreme Events, Drexel’s study “Urban Park Usage During the COVID-19 Pandemic” surveyed park visitors over a three-month period from May to July 2020 at small and mid-size parks in New York and Philadelphia. And it compared park usage numbers to rates of COVID-19 transmission in the areas directly surrounding the parks.

Release date: 23 March 2021
Source: Drexel University

Thin and brittle bones strongly linked to womens heart disease risk - ارتباط سلامت استخوان و قلب

Thinning lower spine, top of thigh bone and hip predictive of raised heart attack/stroke risk

Thin and brittle bones are strongly linked to women’s heart disease risk, with thinning of the lower (lumbar) spine, top of the thigh bone (femoral neck), and hip especially predictive of a heightened heart attack and stroke risk, suggests research in the journal Heart.

Osteoporosis, often dubbed brittle bone disease, is common, particularly among women after the menopause. It is characterised by thinning and weakened bones and a heightened fracture risk.

Release date: 06 May 2021
Source: BMJ

Vegetarians Have Healthier Biomarkers Than Meat Eaters - گیاهخواری یا گوشتخواری؟

Research presented at this year’s ECO shows that vegetarians appear to have a healthier biomarker profile than meat-eaters. This applies to adults of any age and weight, and is also unaffected by smoking and alcohol consumption, according to a new study in over 166,000 UK adults.

Biomarkers can have bad and good health effects, promoting or preventing cancer, cardiovascular and age-related diseases, and other chronic conditions, and have been widely used to assess the effect of diets on health. However, evidence of the metabolic benefits associated with being vegetarian is unclear.

Even after accounting for potentially influential factors including age, sex, education, ethnicity, obesity, smoking, and alcohol intake, the analysis found that compared to meat-eaters, vegetarians had significantly lower levels of 13 biomarkers, including: total cholesterol; low-density lipoprotein (LDL) cholesterol—the so-called ‘bad cholesterol; apolipoprotein A (linked to cardiovascular disease), apolipoprotein B (linked to cardiovascular disease); gamma-glutamyl transferase (GGT) and alanine aminotransferase (AST)—liver function markers indicating inflammation or damage to cells; insulin-like growth factor (IGF-1; a hormone that encourages the growth and proliferation of cancer cells); urate; total protein; and creatinine (marker of worsening kidney function).

However, vegetarians also had lower levels of beneficial biomarkers including high-density lipoprotein ‘good’ (HDL) cholesterol, and vitamin D and calcium (linked to bone and joint health). In addition, they had significantly higher level of fats (triglycerides) in the blood and cystatin-C (suggesting a poorer kidney condition).

Release date: 10 May 2021
Source: European Association for the Study of Obesity

Neighborhood disadvantage may pose an environmental risk to brain development in children - تاثیر همسایگان بر رشد مغزی کودکان

A new USC study suggests that certain neighborhoods — particularly those characterized by poverty and unemployment — may pose an environmental risk to the developing brains of children, impacting neurocognitive performance and even brain size.

The research appears in the journal JAMA Pediatrics.

These findings highlight the importance of neighborhood environments for child and adolescent brain development, the researchers said, and suggest that policies, programs and investments that help improve local neighborhood conditions and empower communities could support children’s neuro development and long-term health.

Neighborhood disadvantage, after accounting for family socioeconomic status and perceptions of neighborhood safety, showed associations with multiple aspects of neurocognition and smaller total cortical surface area, particularly in the frontal, parietal and temporal lobes.

Release date: 04 May 2021
Source: University of Southern California

Being around children makes adults more generous - بخشندگی از نتایج حضور کودکان

Adults are more compassionate and are up to twice as likely to donate to charity when children are present, according to a new study from Social Psychological and Personality Science.

Over eight experiments and more than 2,000 participants, the researchers asked adults to describe what typical children are like. After focusing on children in this way, participants subsequently indicated higher motivations towards compassionate values, such as helpfulness and social justice, and they reported greater empathy with the plight of other adults.

In a field study, which built on these findings, the researchers found that adult passers-by on a shopping street in Bath were more likely to donate to charity when more children were around relative to adults.

When no children were present and all passers-by were adults, a student research team from the University of Bath observed roughly one donation every ten minutes. But when children and adults were equally present on the shopping street, adult passers-by made two donations every ten minutes.

Release date: 05 May 2021
Source: University of Bath

One third of patients hospitalised with severe COVID19 still have lung changes after a year - احتمال ماندگاری عوارض ریوی کرونا

A new study has shown that most patients discharged from hospital after experiencing severe COVID-19 infection appear to return to full health, although up to a third do still have evidence of effects upon the lungs one year on.

COVID-19 has infected millions of people worldwide. People are most commonly hospitalised for COVID-19 infection when it affects the lungs – termed COVID-19 pneumonia. Whilst significant progress has been made in understanding and treating acute COVID-19 pneumonia, very little is understood about how long it takes for patients to fully recover and whether changes within the lungs persist.

In this new study, published in The Lancet Respiratory Medicine, researchers from the University of Southampton worked with collaborators in Wuhan, China, to investigate the natural history of recovery from severe COVID-19 pneumonia up to one year after hospitalisation.

Release date: 06 May 2021
Source: University of Southampton

Mens loneliness linked to an increased risk of cancer - افزایش خطر سرطان در مردان تنها

A recent study by the University of Eastern Finland shows that loneliness among middle-aged men is associated with an increased risk of cancer. According to the researchers, taking account of loneliness and social relationships should thus be an important part of comprehensive health care and disease prevention. The findings were published in Psychiatry Research.

The study was launched in the 1980s with 2,570 middle-aged men from eastern Finland participating. Their health and mortality have been monitored on the basis of register data up until present days. During the follow-up, 649 men, i.e. 25% of the participants, developed cancer, and 283 men (11%) died of cancer. Loneliness increased the risk of cancer by about ten per cent. This association with the risk of cancer was observed regardless of age, socio-economic status, lifestyle, sleep quality, depression symptoms, body mass index, heart disease and their risk factors. In addition, cancer mortality was higher in cancer patients who were unmarried, widowed or divorced at baseline.

Release date: 16 April 2021
Source: University of Eastern Finland

Fasting lowers blood pressure by reshaping the gut microbiota - گرسنگی و فشارخون

Previous studies from our lab have shown that the composition of the gut microbiota in animal models of hypertension, such as the SHRSP (spontaneously hypertensive stroke-prone) rat model, is different from that in animals with normal blood pressure.

The researchers also have shown that transplanting dysbiotic gut microbiota from a hypertensive animal into a normotensive one (one having a healthy blood pressure) results in the recipient developing high blood pressure.

This result told us that gut dysbiosis is not just a consequence of hypertension, but is actually involved in causing it.

Find all the details of this study in the journal Circulation Research.

Release date: 29 April 2021
Source: Baylor College of Medicine

Higher mushroom consumption is associated with a lower risk of cancer - اثرات ضد سرطانی قارچ های خوراکی

Next time you make a salad, you might want to consider adding mushrooms to it. That’s because higher mushroom consumption is associated with a lower risk of cancer, according to a new Penn State study, published in Advances in Nutrition.

The systematic review and meta-analysis examined 17 cancer studies published from 1966 to 2020. Analyzing data from more than 19,500 cancer patients, researchers explored the relationship between mushroom consumption and cancer risk.

Mushrooms are rich in vitamins, nutrients and antioxidants. The team’s findings show that these super foods may also help guard against cancer. Even though shiitake, oyster, maitake and king oyster mushrooms have higher amounts of the amino acid ergothioneine than white button, cremini and portabello mushrooms, the researchers found that people who incorporated any variety of mushrooms into their daily diets had a lower risk of cancer. According to the findings, individuals who ate 18 grams of mushrooms — about 1/8 to 1/4 cup — daily had a 45% lower risk of cancer compared to those who did not eat mushrooms.

Release date: 21 April 2021
Source: Penn State