In-depth

Complications

Dysphagia

Difficulty swallowing can be painful and may indicate a serious medical problem.

Prevention

Childhood vaccines

Childhood vaccines offer protection from serious and potentially fatal diseases. Use this guide to keep your child's shots on track.

Childhood vaccines

Wonder about the benefits and risks of childhood vaccines? Get answers to your questions.

Vaccines for adults

Risk factors

High blood pressure (hypertension)

Uncontrolled high blood pressure can lead to various life-threatening conditions. But it's easily detected — and you can work with your doctor to control it.

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.

Apr. 24, 2013