In-depth

Complications

Bipolar disorder

Insomnia

Sleepless nights? Insomnia includes difficulty going to sleep, staying asleep or going back to sleep after you awaken. Insomnia may be temporary or chronic.

Lifestyle and home remedies

Choosing a light box

If you have seasonal affective disorder, don't spend a lot of money on a light box until you learn what features to consider.

Risk factors

Depression

Symptoms

Unexplained weight loss

Sept. 12, 2014