Wireless jersey to check dehydration

Playing sports until you pass out from dehydration is not a good thing. The fact that many players don't know when to quit merely exacerbates the potential for harm. The solution: smart jerseys that use embedded ECG pads to get the heart rate and sweat production of the player. This data is wirelessly sent back to the bench (via a radio-frequency "communication panel") to give the coach the heads up on when his players are going to pass out. A vibrating patch on the sleeve lets the players know that they've been benched.