If You Like Exercise…Chances Are You’re Doing It Wrong: Proper Strength Training for Maximum Results

2) “Train hard, train briefly, train infrequently,” Jones repeated over and over again. Not everyone agrees—most probably don’t—but I have followed that advice with great success for many years. The end result has been ~45-minute, one-set, whole-body weight workouts once or twice a week; split routines, according to Jones, make no more sense than eating or sleeping for a particular part of your body.

And that's all the people need to know. Unless you're young and on the sauce.
 
Quick cautionary tale from Mike Tyson.
1000 squats training days.
Taking HW boxing punches may have had a smidge to do with some lasting effects too, but...
 
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