> Exercise has many side effects too, including a risk of injury.
This feels like saying chocking is a side effect of eating vegetables.
Most negative side effects from exercise come in a few camps.
* The exercise of choice comes with a risk of accidents. Accidents happen everywhere, but they happen to skiers more frequently than mall power walkers.
* The exercise of choice is well known to put strain on certain body parts. Usually this is a joint or tendon. Pitchers and arms. Power lifting and knees.
* The exerciser did not prepare well for exercise. Do they have proper equipment? Did they stretch? Did they warm up? Did they drink enough fluid? Are they attempting a goal they aren't ready for? Are they over training? Did they get training to establish proper technique? Are they distracted when they should have been focused?