How the Heart Works

Every day, your heart pumps thousands of gallons of blood through your body, keeping you alive. Ever wonder what’s going on in there? Get informed about basic heart function, facts, and health tips here.

Feature Story

Reduce Heart Disease Risk
Dr. Sanjay Gupta, CNN's chief medical correspondent, offers his prescription for curbing cardiovascular risks.
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Heart Basics

• Atherosclerosis: The Enemy Within
• Sex After a Heart Attack
• 8 Major Heart-Breakers
• Air Pressure and Winter Heart Attacks
• Clearing Up HRT Confusion
• Heart Facts
• How the Heart Works
• iPods vs. Pacemakers
• More Sleep Means Better Health
• Program an Emergency Contact in Your Cell Phone
• Caffeine is OK for Your Heart

Prevention

• How to Prevent a Stroke
• Dr. Gupta's Guide to Reduce Your Heart-Disease Risk
• 17 Ways to Stay Heart Healthy This Winter
• 6 Ways to Prevent Heart Disease
• What Every Woman Should Know About Heart Disease
• Get Healthy by 50, Live Longer
• The Heart-Healthy Family
• The Over-40 Guide to Living Longer and Better
• What Every Man Should Know About Heart Disease
• Cut Your Risk of Heart Disease 87%
• Heart Disease and Roller Coasters Don’t Mix
• Doctor's Tips for Preventing Heart Disease
• Preventing a Second Stroke
• Reverse Heart Disease in 4 Steps

CPR

• Video: Adult CPR How-To
• Video: Child CPR How-To
• Video: Infant CPR How-To
• The Myth of Cough CPR
• CPR 101
• CPR Training Anytime