Scientists scanned the brains of people who took psilocybin, including a member of the research team. The scans showed how the drug disrupts key networks, potentially enhancing brain plasticity.

The brain appears to rely on synchronized waves to wash out waste products, including toxins associated with Alzheimer's disease.

Chronic traumatic encephalopathy (CTE) goes far beyond the NFL. Everyday men and women worry they have the fatal disease, and they've turned to questionable brain products for help.

Without a cure for Alzheimer's and other forms of dementia, prevention is paramount. Habits that helped early humans thrive still make sense: a varied diet, exercise and an engaging social life.

Scientists have identified specialized brain cells that create two distinct kinds of thirst. Some cells respond to a need for water alone, while others produce a craving for water and salt.