I have a friend that said that his doctors wanted him to get an iwatch so they could monitor vitals. Exactly what does an iwatch monitor. The reason I ask, is that my dad had a stroke in February and is still having issues. He has what we call "run aways" where he starts walking fast and he says he can't stop until he falls. The doctors aren't sure what causes it and it would be nice to have a way to monitor his vitals when this happens suddenly and for no apparent reason. Any advice would be greatly appreciated. Thanks!!!