Exercise isn't a cure for depression, but it can encourage the release of hormones that help lift your mood. It can also boost your self-confidence and help you sleep better. (Photo Credit ...

Depression is a mood disorder that causes persistent feelings of sadness, emptiness, and loss of joy. It is different from the mood fluctuations that people regularly experience as a part of life.

There is no single known cause of depression. Rather, it likely results from a combination of genetic, biologic, environmental, and psychological factors. Major negative experiences—trauma, loss ...