In-depth

Causes

Addison's disease

Addison's disease occurs when your adrenal glands produce insufficient amounts of certain important hormones. Treatment may include taking corticosteroids.

Anorexia nervosa

Drug addiction

Hypothyroidism

Although low levels of thyroid hormones (hypothyroidism) can leave you feeling tired and depressed, medications can help you live a normal life.

Toxic shock syndrome

Complications

Amniotic fluid embolism

Amniotic fluid embolism — Overview covers definition, symptoms and treatment of this pregnancy or post-pregnancy condition.

Atrial fibrillation

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.

Gangrene

Guillain-Barre syndrome

Sepsis

Lifestyle and home remedies

Daily water requirement

Risk factors

Depression

Take control of your mood and health. Explore the many depression treatment options and learn coping skills.

Symptoms

Dizziness

Dizziness is one of the most common health concerns. However, few cases of dizziness are due to serious conditions.

Fatigue

Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.

Nausea and vomiting

Symptom Checker

Foot pain? Headache? Sore throat? Skin rash? Use the Symptom Checker to find out what's causing your symptom.

Tests and diagnosis

Blood pressure test

Echocardiogram

Echocardiogram allows your doctor to see your heart in motion. Here's what you need to know about the test.

Electrocardiogram

An electrocardiogram (ECG or EKG) is a test that provides valuable clues about your heart health. Here's what you need to know about the test.

Stress test

Tilt table test

May 02, 2014