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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.

What's earwax made of?

Humans sure make a lot of earwax, but what's it made of? Learn what's in your earwax at HowStuffWorks. See more »

Why do elbows itch?

Itchy elbows can be really annoying. Learn what causes your elbows to itch at HowStuffWorks. See more »

Is what's in my belly button really lint?

Scientists have taken on the job of evaluating the debris found in the human belly button. Learn more about belly button lint at HowStuffWorks. See more »

Do ears really grow your entire life?

Humans essentially stop growing after puberty, but do their ears keep right on growing? Find out whether ear growth never stops at HowStuffWorks. See more »

10 Grossest Things in Your Body Right Now

Human bodies are wonderlands of unpleasantness. Find out about the 10 grossest things your body is harboring right this minute. See more »

Why do we have fingerprints?

Why do we have fingerprints? Identification isn't their only purpose. Learn about the reasons for fingerprints. See more »

Why do men have nipples?

Why do men have nipples? Did they ever serve a purpose? Find out why men have nipples at HowStuffWorks. See more »

Facts About Organ Donation

Organ donation can help save lives. Get fast facts here about organ donation and how you can help. See more »

5 Things Men Are Most Embarrassed About Their Bodies

Both women and men find certain things embarrassing about their bodies. See five of the most embarrassing things about men's bodies here to learn more. See more »

5 Things Women Are Most Embarrassed About Their Bodies

Bodies can be embarrassing. Take a look at these top 5 things women find embarrassing about their bodies to learn more. See more »