Mind & Mood Archive

New experiences stimulate pathways that improve memory.

Our brains have the capacity to improve as we age. "The mechanisms in place may slow over time, but the brain's ability to change doesn't wane," says Dr. Alvaro Pascual-Leone, medical director of the Deanna and Sidney Wolk Center for Memory Health at Harvard-affiliated Hebrew SeniorLife.

Just as when you work to strengthen aging muscles, though, you need to put in extra effort to keep the "muscle" inside your head in top condition. Among the best ways to do this is to learn new things that continuously challenge your mind.

Negative traits such as anger and insecurity have been linked to heart-related problems. Taking steps to temper these tendencies may help.

Remember the Type A personality? First coined back in the 1950s, the term refers to people who are aggressive, ambitious, competitive, and time-conscious. But the notion that Type As were more likely to have heart attacks than their more laid-back counterparts turned out to be untrue, as numerous studies in the 1980s and 1990s revealed.

But in the early 2000s, another personality type — Type D for distressed — began getting more attention. Type D people are anxious, irritable, and angry; they also tend to feel ill at ease in social situations and are uncomfortable opening up to others. According to a 2018 review in Current Cardiology Reports, having a Type D personality is a risk factor for cardiovascular disease. The lead author, psychologist Johan Denollet, first described Type D and created a test for it (see "Type D personality test").

News briefs

A little afternoon snooze can help you feel more rested — and it might do you good in other ways, too. A small study from China published online Jan. 25, 2021, by General Psychiatry suggests that afternoon naps (between five minutes and two hours long) may be good for your memory and thinking skills. Researchers put more than 2,200 older adults through a series of health screenings that included blood tests and cognitive assessments, and also asked participants whether and how often they napped. About 1,500 of the participants were nappers. Compared with people who didn't nap, the nappers performed better on cognitive tests, scoring better on location awareness, verbal fluency, and memory. The study was observational, so it can't prove that napping caused the better cognitive test results. Previous studies have shown that afternoon nap benefits decline as age and nap duration increase. Short, frequent naps (less than 30 minutes, four times per week) have been associated with reduced risks for developing Alzheimer's disease. In contrast, people who take long naps (two hours or longer) appear to have worse cognitive function, although it is unclear what is cause and what is effect.

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Consider your social interaction if you've been feeling foggy.

We've all been isolated from many family members and friends during the pandemic. If you've been having a harder time remembering things or processing information since the pandemic began, it could be an isolation side effect.

"It's something I'm seeing clinically. Some people were okay before the pandemic and now they're having faster cognitive decline," says Dr. Joel Salinas, a behavioral neurologist and faculty member of the Harvard Center for Population and Development Studies.

It takes a one-two punch to lower these risks for heart disease, heart attack, and stroke.

High cholesterol has long been known as a bad actor in heart health. Too much LDL (bad) cholesterol in your blood can lead to fatty deposits in your arteries and the formation of artery-narrowing plaque (atherosclerosis), heart attacks, and strokes.

But LDL doesn't act alone. Chronic inflammation — a persistent activation of the immune system — also fuels heart attack and stroke risks. That means you must address both high LDL levels and chronic inflammation to protect your health.

No one likes being stuck by a needle, and it’s not unusual for a person to be afraid of needles. If it’s serious enough, this phobia can affect quality of life and overall health — an especially important concern with vaccination available for COVID-19. But there are ways to cope with the problem.

As more states have legalized the use of marijuana and products derived from it, more children are being exposed. Children can't be trusted not to eat appealing-looking food items they may find, so it's up to adults to take precautions and make sure edibles are stored where children can't find them.

Try stress reduction to improve your quality of life and potentially relieve allergy symptoms.

Spring allergies are a stressful business. Coping with watery eyes, a runny nose, sneezing, coughing, or a sore throat affects how you get through each day. "The primary consequence is a reduced quality of life. This naturally can lead to stress on patients and their families," says Dr. Ahmad Sedaghat, an ear, nose, and throat specialist at Harvard-affiliated Massachusetts Eye and Ear Infirmary.

The influence goes both ways: not only can allergies cause stress, but stress can make allergies worse.

In addition to everything else associated with stress, it can have negative effects on the skin, and can also aggravate certain skin conditions. But skin and hair also produce stress-inducing signals that can travel back to the brain, adding to psychological stress and perpetuating a stress cycle.