Brain and Cognitive Health Archive

The start of daylight saving time in the spring can have a profound impact on people's well-being. Moving the clock ahead one hour can cause sleep deprivation, affect focus and concentration, and exacerbate existing problems like depression, anxiety, and seasonal affective disorder. People can lessen the effect by taking steps a week prior to the time change, such as adjusting their sleep schedule, getting more light exposure, and cutting back on caffeine and alcohol.

A 2022 review of dozens of randomized controlled trials and observational studies found that people who used hearing aids or cochlear implants had a 19% lower risk of cognitive decline, compared with people who didn't use the devices.

Stroke is the most common cause of aphasia, a language-based brain disorder that can affect speaking, understanding, reading, and writing. But the brain has the ability to rewire brain cells and recover lost function through a process known as neuroplasticity. Therapy with a speech-language pathologist facilitates this recovery, which is greatest in the first several months after a stroke. Stroke survivors who keep working on their language processing problems can continue to improve for years.

More than a million nerve connections are made in the brain in the first few years of life. Babies and young children thrive with responsive caregiving, such as engaging a child in playful games that change as they grow.

One in 10 Americans ages 65 and older has dementia. The condition is likely to progress slowly, offering couples the opportunity to adopt coping strategies that can smooth their path. Early on, you can consider treatment that may temporarily improve memory and thinking problems. People whose partners have been diagnosed should get informed about dementia, attend doctor's visits, take over certain tasks, keep routines, update legal documents, and join a support group.

Older adults can still lower their risk for dementia by taking medication to decrease their high blood pressure, according to a recent study.

Keeping the brain as healthy as possible might help slow the fuzzy thinking that develops with age-related brain changes. The best way to stay sharp is by living a healthy lifestyle: exercising regularly (at least 150 minutes per week of moderate-intensity exercise, like brisk walking), sleeping for seven to nine hours per night, eating a Mediterranean-style diet, managing stress, socializing, and learning new things. Doing crossword puzzles may also help sharpen cognition. So might treatment for underlying health conditions, such as depression or thyroid disease.

People who take between 3,800 and 9,800 steps daily may reduce their risk for dementia, and walking at a brisk pace could offer even more protection, according to a 2022 study.

Aerobic and muscle-building exercises can trigger physiological changes that improve blood vessels and metabolism in ways that help prevent all the major risk factors that contribute to heart disease. These include high blood pressure, diabetes, obesity, and unhealthy cholesterol levels. Exercise can also improve mental health problems such as depression and stress, which are common but underrecognized risks for heart disease.

Sitting too much is bad for health. But there are ways to make time spent seated a little healthier. For example, people can keep their brains active by reading, writing, doing a hobby (such as knitting), or playing an instrument. And people can exercise while in a seated position. It's possible to do an aerobic workout that gets the heart and lungs pumping, such as a seated dance routine or calisthenics, as well as muscle-strengthening activities or stretching exercises.