In-depth

Causes

Allergies

Cold urticaria

Drug addiction

Drug allergy

Heart disease

Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.

Hyperthyroidism

Hypothermia

Iron deficiency anemia

Iron deficiency anemia may leave you feeling sapped of energy. This condition is especially common in women. Iron supplements usually help.

Complications

Amniotic fluid embolism

Dehydration

You normally lose about 10 cups (2.4 liters) of water every day — much more during exercise or illness. Learn how to stay hydrated.

Generalized anxiety disorder

Guillain-Barre syndrome

Heart failure

Pectus excavatum

Ventricular fibrillation

Prevention

Caffeine: How much is too much?

Fitting in fitness

How to say no

Ingredient substitutions

Risk factors

Panic attacks and panic disorder

Symptoms

Dizziness

Heart palpitations

Heart palpitations are skipped, fluttering or racing heartbeats that aren't usually a symptom of a serious heart problem. Discover the causes and symptoms of this condition.

Shortness of breath

Tests and diagnosis

Electrocardiogram

Holter monitor

Tilt table test

Treatments and drugs

Cardiac ablation

Cardioversion

May 06, 2014