Mind & Mood Archive

Millions of people around the world have sickle cell disease, a genetic condition that can cause pain and damage to organs or tissues, and can make children more susceptible to other health problems. In the US, most cases are diagnosed through screening in newborns. Getting connected to the proper care early in a child's life can help prevent complications from the disease.

Every day, more and more adults are getting vaccinated against COVID-19, helping us build toward herd immunity. But what about children and teens? What is the status of research on the vaccines in these groups, and when might vaccines be available for them?

Although it has been known for some time that individuals with dementia frequently have poor, fragmented sleep, two new studies suggest that if you don't get enough sleep in midlife, you are at increased risk for dementia later in life.

Childhood trauma may raise the risk of cardiovascular disease, but making lifestyle changes can help you stay healthy.

Traumatic childhood experiences may have a lasting effect on your heart health.

A review published online Dec. 2, 2020, by JAMA Cardiology found that adults who had multiple adverse childhood experiences (ACEs) — like being neglected; suffering physical, sexual, or emotional abuse; or witnessing violence at home — had double the risk of cardiovascular disease and an early death compared with people who didn't face any ACEs at all.

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.

Image: kali9/Getty Images

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.