Absence of human contact is associated with declines in cognitive function. But as the COVID-19 pandemic brings concerns about the potential harms of isolation to the fore, researchers are still hunting for concrete evidence of a causal role as well as possible mechanisms.

Studies point to a role for physical activity in fighting malignancies, improving treatment outcomes, and fostering overall health in patients.

After an accident as a teenager, he developed the disorder. He then studied the brain to better understand his own seizures, and now plans to sail around the world to show others with the condition how to push their limits.

Clues about the biological mechanisms that contribute to a person’s chance of contemplating or attempting suicide

The biochemical mechanisms in the brain underlying suicidal behavior are beginning to come to light, and researchers hope they could one day lead to better treatment and prevention strategies.

A meta-analysis of more than 80 studies from the past four decades finds weak evidence to support the use of medicinal cannabis to treat anxiety, depression, and other mental health disorders.

The effects of the therapy in a small group of  patients were long-lasting, researchers say, adding to evidence that the approach works for treatment-resistant depression.

The FDA has given the green light to the first major new classes of antidepressant therapies in decades, opening up new avenues for therapeutic development.

Some researchers and animal rights groups are amplifying their opposition to an assay that measures how long a rodent tries to stay afloat.