Supposedly it was a LIFE magazine interview, but Neil Armstrong was asked about the physical training for being an Apollo astronaut. He said “I believe we only have a finite number of heartbeats, I’m not going to waste any of mine running around the block”. Naturally, NASA soon made him “clarify” his comments and he extolled the many virtues of regular exercise.
I’ve never seen a happy jogger.
And there is this about exercise in general....
1 Timothy 4:8
For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.