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Body Parts

Body Parts work together to perform different functions required for life. Learn how your internal organs operate in this section.

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What does the pituitary gland do?

Your pituitary gland manages most hormone production. Learn about the pituitary gland in this article.


What's earwax made of?

As anyone who's ever used a cotton swab knows, human ears generate a fair amount of earwax. But what exactly is the stuff, and do you need to make a point of clearing it out every so often?

Why do elbows itch?

If you have chronically itchy elbows, you're probably irritated in more than one way, as elbows aren't easy to scratch. For what it's worth, you're also in good company: A certain Civil War general shared your itchy condition.

Is what's in my belly button really lint?

Certain scientists have taken on the unappealing job of evaluating the debris that hangs out in the human belly button. What's hiding in your belly button?

Do ears really grow your entire life?

Do your ears hang low? Do they wiggle to and fro? Could it be because your ears keep right on growing long after the rest of you has stopped?

10 Grossest Things in Your Body Right Now

The human body is full of things that might make you shudder -- sweat, eye gunk, pus, partially digested food. What are some of the ickiest and most nausea-inducing items you're carting around in your person?

Why do we have fingerprints?

If you've ever considered burning them off for various nefarious purposes, you may want to reconsider. Those babies are more than just loopy tools of identification.

Why do men have nipples?

During early pregnancy, both male and female human embryos develop something called milk lines, ridges that eventually recede into nipples. Why have some species lost this unisex trait, and can human men actually produce milk?

Facts About Organ Donation

Every day in the United States, an average of 18 people die while awaiting organ transplants because of a critical shortage of donors. Get facts about organ donation here.

5 Things Men Are Most Embarrassed About Their Bodies

Every guy is self-conscious about something, and hours are often spent wondering how he measures up to the competition. But what would-be body flaws are the most embarrassing?

5 Things Women Are Most Embarrassed About Their Bodies

Beauty may be in the eye of the beholder, but women are definitely held to higher standards than men. Could this be why so many of us are embarrassed of our bodies?