Brain and Cognitive Health Archive

Soil and water pollution from heavy metals, pesticides, and microplastics may affect a person's risk of cardiovascular disease. These pollutants can enter the body when people eat crops grown in dirty soil, drink water contaminated by dirty soil, or inhale soil dust. Lead, cadmium, and arsenic are among the most pressing concerns. Potentially helpful actions include testing one's drinking water, buying organic foods, and minimizing plastic use.

Renewed research into the potential benefits of psychedelic drugs has led to interest in microdosing — taking a fraction of a regular dose. Many people believe that microdosing can help them, but the evidence from some recent studies is mixed.

A 2022 study found that survivors of severe COVID-19 infections can develop cognitive problems, such as brain fog or trouble finding words, equivalent to the loss of 10 IQ points or 20 years of aging.

Around menopause, a decline in estrogen can trigger low-grade inflammation that leads to unexpected symptoms from head to toe. Symptoms can affect the digestive tract, skin, joints, eyes, ears, and heart, among other areas. A 2022 study found that estrogen loss can even fuel the jaw pain known as temporomandibular disorder. A year or longer can pass before many women connect symptoms with menopause. Women can take lifestyle measures to lower inflammation, such as eating more fruits and vegetables, avoiding processed foods, and exercising.

Healthy older adults may have a higher risk for dementia if they follow high-inflammatory diets that include greater amounts of simple sugars, cholesterol, saturated fat, and fried foods.

Older adults known as super-agers have cognitive function similar to that of young people. Experts believe this is because their brains shrink at a much slower rate, which may be the result of genetics or lifestyle habits or both. While people can't alter their genes, it could be possible to slow their natural brain decline by adopting some super-ager habits, like being physically active, pursuing mentally challenging hobbies, eating a diet rich in inflammation-fighting foods, and engaging with social groups.

A large study published online June 23, 2022, by JAMA Network Open found that poor handgrip strength in midlife was associated with cognitive decline a decade later.

Following healthy habits like exercising, eating a proper diet, and being socially engaged can help people live a longer, healthier life. Still, the ultimate goal is not simply to live longer, but to enjoy life, which means placing more emphasis on quality of life. How life quality is defined can vary depending on people's goals, but it often revolves around three certain mindsets: having a sense of purpose, focusing on where one wants to devote time and energy, and enjoying the process and journey.

A 2022 study found that women are more likely than men to have "generalized" stroke symptoms such as weakness and confusion, in addition to classic signs such as speech or movement problems.

Studies have shown that doing any one of certain activities, such as staying physically active and maintaining social ties, helps maintain brain health in older adults. A new study suggests that participating in multiple kinds of these activities, several times a week, may help even more.