A new study finds about 7% of U.S. adults have been at the scene of a mass shooting and 2% have been injured during one.

People who engage in moderate to vigorous physical activity on a regular basis are less likely to develop dementia, stroke, anxiety, depression and sleep disorders, researchers find.

Heart patients who eat a big, calorie-rich breakfast may significantly lower their risk of depression, according to new research.

A new study finds a dramatic increase in the number of adults using ketamine for recreational purposes. Ketamine is a medical anesthetic that has some hallucinogenic effects.

A new study finds people who take at least 5,000 steps a day experience fewer symptoms of depression.

The latest CDC data shows anxiety and depression hitting U.S. adults harder, especially those 18-29 years old.

A new study finds using bright light therapy in addition to medication helps ease symptoms of major depressive disorder and bipolar depression.

Researchers find no link between semaglutide, the main ingredient in Ozempic and Wegovy, and depression, suicidal thoughts or behaviors in patients with no prior history of the conditions.