...sarcopenia ["the loss of muscle mass that occurs naturally -- and inevitably -- with age"] creeps by in imperceptible increments, stealing a fifth of a pound of muscle a year, from ages 25 [!] to 50, and then it picks up a dreadful, yet still mostly silent, velocity.
Barring disease, you die by wasting away. Hit those weights!
I'm Jim Biancolo, and this is stuff I found interesting that I thought you might like too. Here are some of my favorites if you want to start there. Mostly I link to other people, but some stuff is mine, like:
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