The human body is an amazing structure made up of many fascinating parts and systems. Learn about the human body and how its systems work together.
We all know 20/20 vision is a good thing, but just what do those numbers mean?
Lymph is a commonly-used medical term, but what's it mean exactly?
Your appendix is really a pretty mysterious organ. Find out why you have an organ that's not necessary to your survival.
Your ears are very sensitive to the air or water pressure around them. But just what happens when you dive into that pool?
You may never have thought about it (unless your child asks), but boogers are sticky for a perfectly logical scientific reason.
By DiscoveryHealth.com writers
You breath all day, every day. How much oxygen does this process consume?
The heart is a vital organ that basically serves as a pump. Learn about heart chambers and valves, blood flow, the heart's electrical system and blood supply. Read more about how this amazing organ works.
By Carl Bianco
There are millions of bacteria, microbes, viruses, toxins and parasites that want to invade your body. And they'd happily do it, too -- if it weren't for your immune system.
By Marshall Brain
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