I suppose it's theoretically possible to perform some type of exercise until you die. It's also a lot more likely that exercise will strain your heart enough t

I suppose it's theoretically possible to perform some type of exercise until you die. It's also a lot more likely that exercise will strain your heart enough to cause a heart attack, or some other injury that leads to death. What the study is saying is that even accounting for all of those situations that actually happened, the odds are still in your favor to exercise more. So the odds are, you won't exercise until you die.