In-depth

Alternative medicine

Hypnosis

Symptoms

Tachycardia

Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.

Tests and diagnosis

Polysomnography (sleep study)

Treatments and drugs

Cognitive behavioral therapy

Cognitive behavioral therapy is one of the most common types of psychotherapy. It focuses on specific issues and goals to improve your life.

Aug. 12, 2014