[kolev]

I can't believe people think that the benefits of running outweigh the risks. First, the benefits of extreme running are questionable. Moderate exercise is fine (if done right), but extremes are never healthy. In this case, and, in general, fainting is not something that doesn't carry negative effects. When you accumulate so many incidents, I'm sure many millions of brain cells will die. Boxing does the same, but doctors still give clearance and that's why one should question the ethics of these doctors as nothing that has an accumulating harm should be okayed by them.