Muscle Memory is a "thing"; the nuclei we create with training stay with us, even when we take time away.
"Use it or Lose it" is also accurate, in that the satellite cells we need to repair muscle, if they are not called upon they will leave the cycle into a form of cell death and no longer be available. This is problematic for the elderly with muscle loss
Midlife constipation, this topic comes up a lot and you are not imagining it! Ladies did you know that your colon is 14 cm longer than a mans, that is an extended transit time, which is made worse by declining sex hormones
This is another topic from my Mastering Midlife Program, be sure to subscribe to be notified when the program dates are announced