There's a difference between over-training and over-exercising. Over-training can be you're trying to do something at high performance, but when you're over-exercising it just means that you don't have a life. And there are obviously people who go to that extreme.
Mark SpitzIt has nothing to do with swimming. That happens to be my sport. I'm trying to see how far I can go
Mark SpitzThe pool is terrible, but that doesn't have much to do with my record swims. That's all mental attitude.
Mark Spitz