It depends on what you are doing, and the intensity. For example short slow walk for 60 minutes and then some yoga or weights is fine. You just can't do high intensity cardio every day, you'll eventually suffer from overtraining.
I personally don't do more than 90 minutes, usually do 45 minutes to 60 min.
Some people can get obsessed or addicted so as long as you are keeping it in perspective I wouldn't worry about it. 3 hours is too much unless you are training for a triathlon or something specific.
|