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It appears that people who eat at least three servings of whole grains per day gain fewer inches around their waist than people who eat less than half a serving per day, according to a study published online July 13, 2021, by The Journal of Nutrition.
Keeping the gut microbiome diverse is good for health and may even be tied to healthier aging. To maintain such diversity, it helps to eat a healthy diet that includes lots of fiber, which gut microbes eat. Also, exercise may be helpful to the gut microbiome, since exercise may change the rate at which material moves through the intestines. Other ways to promote a healthy gut microbiome including getting a dog, which exposes us to more microbes; quitting smoking, which relieves stress on gut microbes; and maybe eating more probiotic-rich foods, which may boost beneficial bacteria in the gut.
“Pandemic posture” refers to poor posture from slouching at a desk or on a couch during time at home during the pandemic, and it can result in back or neck pain. To reduce pain, doctors recommend exercising every day; working with a physical therapist to learn the right way to sit up straight and how to strengthen the muscles that support the posture; using a chair with cushioning for the buttocks and support for the lower back; using a footrest; keeping a computer monitor at eye level; and using an ergonomically designed mouse and wrist pad.
Healthy lifestyle habits may contribute to better brain health and sharper thinking skills. For example, getting at least seven hours of sleep each night gives the brain time to consolidate and store information and also flush out waste—including Alzheimer’s disease–related toxins. Eating a healthy diet helps ward off “mini” strokes that kill brain cells and lead to cognitive decline. Other healthy lifestyle habits that may help cognition include exercising, managing stress, and practicing mindfulness.
A study published online July 14, 2021, by the BMJ suggests that eating ultra-processed foods is associated with substantially increased risks of developing inflammatory bowel disease, such as Crohn’s disease or ulcerative colitis.
In July 2021, Johnson & Johnson recalled five aerosol sunscreen products and CVS stopped selling two sunscreen products because of the presence of the carcinogen benzene.
Aducanumab is a newly approved drug for Alzheimer’s disease with the potential to reduce amyloid-beta plaque buildup in the brain. There are other medications being studied to see if they can reduce amyloid-beta, such as a monoclonal antibody that targets amyloid-beta before it forms plaques, and a monoclonal antibody that takes aim at plaque that has already formed. Other experimental approaches try to prevent tau tangles in brain cells, reduce brain inflammation, or reduce the amount of amyloid-beta that is produced.
Evidence suggests that people who’ve had COVID-19 may have some natural protection against the virus, but will have a much stronger immune response if they also get the vaccine.
With influenza virus, a new vaccine must be developed each year to adapt to the virus’s changing structure.
The link between exercise and atrial fibrillation (afib) and stroke prevention is now a little clearer, thanks to a Harvard study. It offers strong evidence that 150 minutes per week of moderate-to-vigorous physical activity is associated with a reduced risk for atrial fibrillation and stroke. Researchers aren’t surprised, since exercise helps the chambers of the heart contract and relax, while being sedentary increases afib and stroke risk. Other ways to ward off afib and stroke include treating sleep apnea, quitting smoking, and drinking only in moderation.