The latest news on depression
Stress may contribute to problems like depression, which affects 2 million adolescents each year.
But, researchers are still trying to understand the connection
Government report notes problems include dementia, aggression, depression
Dutch researchers made the connection after studying adults ages 70 to 79
While mechanism is unclear, findings may help improve treatment for psychiatric problems
But lifestyle modifications, especially exercise, can cut the odds, study says
A conversation with John Cacioppo, author of a new book on the need for social connection.
International experts say there isn't enough evidence to prove its value.