Brain and Cognitive Health Archive

Alzheimer's disease and other forms of dementia are something we think of as diseases of old age. Memory loss is a common symptom, and something that people in midlife also experience — but young onset dementia is very uncommon.

As more US states have legalized recreational cannabis or passed medical cannabis laws, public perception that cannabis is a harmless substance is growing. But its long-term benefits and risks remain unclear, and research has revealed consistently that heavy long-term cannabis use can affect cognition in midlife.

Climate anxiety is distress related to worries about how the effects of climate change. It's more likely to affect adolescents and young adults, leading to chronic stress, depression, anxiety, behavioral problems, and more. What can you do to manage climate anxiety in yourself or a young person in your life?

Compared with eating carbohydrates, eating protein—particularly protein from plants— was associated with lower odds of later developing cognitive declines, according to a Harvard study in the January 2022 issue of The American Journal of Clinical Nutrition.

When adult children express concerns about their parents' health, it benefits the parents to consider them. It could be that the kids are observing symptoms of conditions best treated early. If parents disagree with their kids' concerns, experts advise that parents simply express appreciation for the feedback and say they'll think about what the kids have said. If the parents want more information, experts advise writing down the concerns and either calling the doctor or bringing the matter up at the next appointment.

Brain fog is tied to the severity of certain menopause symptoms, especially depression and sexual problems. Estrogen loss may be a factor, but cognitive issues aren't expected to linger. Women in menopause may worry dementia is the culprit, but Alzheimer's is rare at midlife. Strategies for coping with brain fog include staying calm, challenging the brain by changing routines, writing reminders, exercising, getting sufficient sleep, and avoiding multitasking.

A new study suggests a high-fiber diet may protect against dementia. In a group of about 3,700 older adults, those who consumed the most fiber (about 20 grams daily) had the lowest rates of dementia, and those who ate the least fiber (8 grams daily) had the highest rates.

Hiking continues to be one of the safest activities people can enjoy during COVID because it is done outside and away from confined group settings. The outdoor adventure also is one of the best exercises for both body and mind, as it can improve lower-body strength and endurance, increase balancing skills that can protect against falls, lower levels of stress and anxiety, and reduce the risk of depression.

People who struggle to remember names, details, or words during conversation are dealing with a phenomenon called "blocking," which is related to diminished memory recall. Addressing issues like stress, depression, an unhealthy diet, insomnia, lack of exercise, and prolonged isolation can improve recall. Otherwise, when blocking situations arise, people can try to incorporate cueing, a method that uses "hints" to help the brain better retrieve information.

Vitamin B₆ helps with the body's enzyme reactions, immune system health, brain chemicals, and more, but it doesn't get a lot of attention. The body can't synthesize it, so people need to get it from food, and a recent study found that a surprisingly high percentage of people may be deficient in vitamin B₆.