Your body’s capabilities are astounding. From your gut’s "second brain" to the fact that your skin reduces air pollution, ...

Body fat is not just something to get rid of. It plays important roles in the human body, from regulating metabolism to ...

Your baby grows from the size of a pinhead to a 7/8lb boy or girl in just 40 weeks. Your body's built to cope, but it helps to understand the changes it goes through. We look at 21 amazing ways in ...

Test your smarts against this one-minute video, where Ask Smithsonian host Eric Schulze uncovers the facts behind five popular myths about the human body. 3play_processed Ask Smithsonian Explore ...