I think there is a an appropriate dose as far as all training goes. If you're putting in really big miles with a lot of intensity, I think it will throw your hormone levels off. I start to notice a complete lack of ability to recover from a training ride. I get to the point where I just can't ride a hard interval. The only thing to do is rest.

One of the things that pros have going for them is the ability to absorb a tremendous workload. I don't have that.