Body Parts work together to perform different functions required for life. Learn how your internal organs operate in this section.
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 »
10 Most Common Body Parts People Hide
Many people hide body parts that they don't like. Is your No. 1 insecurity on our list? See 10 common body parts people hide. See more »
What does the pituitary gland do?
Do you know what the pituitary gland does? Find out what the pituitary gland does in this article from HowStuffWorks. See more »
What sinus is located behind your eyes?
The sphenoid sinuses are located behind your eyes. Learn more about what sinus is located behind your eyes from this article. See more »
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