Dry, itchy armpits are often treated as a simple skin issue, but this area behaves differently from the rest of the body.

You can't escape friction. The force that resists motion between two objects that are in contact with one another exhibits itself all over the place: in between your engine's rod bearings and its ...

At 22, I never expected to need help from my parents, be unable to drive, complete my nursing studies—or even read a book. But that's been my life for the past three years since I was diagnosed with a ...