Every morning for the past three weeks I have spent five minutes chewing on a smooth piece of plastic the size of a small egg. It's called a Jawzrsize, and, at least according to hundreds of ...

Low blood sodium, or hyponatremia, occurs when water and sodium are out of balance in your body. It can cause weakness, headache, nausea, and muscle cramps.

Background Olympic weightlifting and powerlifting are two sports that expose the body to great forces. Injury characteristics have not been systematically reviewed for these two growing sports.