A series of podcasts from the people that brought you Gatorade. A panel of Doctors, Professors and health care professionals discuss the importance of sodium for athletes. Some topics discussed are what happens to cause sodium loss, how it affects the body, and what an athlete can do to maintain sodium balance.

Nicely done site with multi-media, tools for determining your needed fluid intake, a virtual tour of the body, Podcasts, and noteworthy pages full of clinical studies and commentaries. Maybe not for the medically minded, it is certainly a great jumping off point.