My friend who is an orthopedic surgeon said it was ok for people under 30. People 30-40 if they are already in good shape can do it.
People over 40 should not do it. He said he has made a fortune fixing 50 year olds who think they can do it.
Ill continue to eat right and get moderate exercise.
People, in general, make exercising/getting "in shape" a lot more difficult than it has to be. Eat decent food, in reasonable portions, limit sugary stuff, and get regular cardio.....do that, and you'll probably be in better physical condition than a large majority of the populace.
