Question

A less than respectable news tabloid announced that “doctors show that exercise shortens life. life expectancy is programmed into a set number of heartbeats; the faster your heart beats, the sooner you die.” even is this “theory” were true, what is wrong with the conclusion concerning exercise?

Answer 1

a mistake could be the fact that exercise over time lowers your resting HR. so even though for the period of time that you are exercising your heart is beating more, the rest of the time your heart will be beating less, therefore "using less of your heart beats"