In-depth

Complications

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.

Personality disorders

Personality disorders affect the way you think, behave and relate to others. Learn about symptoms and treatments.

Risk factors

Depression

Tests and diagnosis

EEG (electroencephalogram)

Lumbar puncture (spinal tap)

Sept. 09, 2015