Mind & Mood 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.

Psychedelic drugs such as psilocybin (found in "magic mushrooms") and 5-MeO-DMT (a compound derived from toad venom) are being tested for treating cases of depression that don't respond to standard treatments. New depression approaches are needed since current treatments don't work in nearly half of patients. Hallucinogenics may change longstanding thought patterns or promote new connections in brain neurons. Benefits of psilocybin on mood appear to be long-lasting. FDA approval for psilocybin will likely take several more years.

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.

Doctors advise that the best ways to lower risk for heart disease is to exercise, eat right, and adopt healthy lifestyle habits, like stress management, social engagement, and adequate sleep. But what do cardiology doctors do to practice what they preach? Three Harvard cardiologists share their heart-healthy habits and how they've overcome the same challenges their patients face.

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.

Researchers who began collecting data on thousands of people, starting when they were children and following up decades later, found that five risk factors influence health outcomes in adulthood. Parents should know the important steps they can take to get their children started toward healthy lives as adults.