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Science
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Health
and Human Body

Earth

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A-Z

Human Body

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About the Human Body

Brain

It makes us human.

Study
the Matter

Digestive
System

It's your fuel factory.

Go
In

Heart

How many times will it beat?

Get
the Answer

Lungs

Meet your body's fuel tanks.

Go
Now

Skin

It's your biggest organ.

Scratch
the Surface

Did You Know?

Dominant Dimples

Have a chin dimple? That's a relatively rare
trait. Though it's the result of a dominant gene,
few people in the general population carry
it.

News: Latest Health Stories

How
TB Jumps From Humans to Wildlife -- Vet Seeks
Clues

VIDEO:
Former Pet Primates Find Haven

Child
Abuse Alters Stress-Fighting Gene, Study
Says

See
More Health News

What
Is RSS?

Related Features

Quiz:
Brain

Are you a brain when it comes to the brain?
Find out with this quiz and give your gray matter
a workout in the process.

Start
the Quiz

Article:
The Enigma of Beauty

We care passionately about how we look. Through
history, we've primped, preened, posed, and even
put our health on the line, all for an ideal that
no one can truly define.

Read
More

Article:
The Stem Cell Divide

Embryonic stem cells may someday help doctors
treat ills ranging from paralysis to diabetes. But
science must contend with politics before that
hope can be realized.

Read
More

Article:
Mending Broken Hearts

As heart disease reaches epidemic proportions
worldwide, researchers are moving away from the
old

Read
More

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Explore the human machine.

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