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How the Heart Works

The heart is supplied with blood through the coronary arteries, which branch off the aorta.


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Today’s Interactive Tools and Multimedia

Animation:
Calculator: Cost of Smoking Calculator
Clinical Wizard:
Podcast:
Quiz: Blood Transfusion Quiz
Risk Assesment: Cervical Cancer Risk Assessment
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Today in Health News

1 in 4 U.S. Kids Underestimate Their Weight, Study Finds

Kids and parents need education about healthy weight and healthful lifestyles, experts say

Health Tip of the Day

Gender and Geography

If you can't get there from here, it may have a lot to do with your gender and the directions you're using. Women tend to rely on landmarks ("Turn right at the gas station"), but men tend to use abstract strategies tied to compass points and exact distances ("Go north 1.2 miles and turn west"). What's more, each sex has trouble switching gears, a University of Saskatchewan study found. It's harder for men to use landmark-based directions and tougher for women to use abstract instructions, says lead author Deborah M. Saucier, Ph.D. The study of 82 students who had to find several destinations appeared in Behavioral Neuroscience in 2002.

Healthy Living

Smoking Cessation
You’ve heard all the reasons to stop smoking. You may have thought about quitting or even tried it a time or two. But you may need a little help. Learn how to get ready to quit, how to quit, and how to stay quit for a healthier, smoke-free future.

Health Centers

Heart Disease
Heart disease is the biggest health risk Americans face today. If you don’t have heart disease now, you can help prevent it. If you’ve already been diagnosed with heart disease, you can keep it from getting worse. Here are the tools to get you started.

Your Family

Older Adult's Health
Although genetics determines how long we will live, it's the lifestyle we choose that will determine how healthy we are as we age.

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