The barbell gets treated like a young man's hobby. It's the opposite. It's the thing you're supposed to still be doing at 70.
35% percent of American men lift at all. By 65 that's 22%. Women drop fr...
The mechanism IS the retirement plan. After 50 you lose roughly 1 to 2% of muscle per year, and that loss tracks falls, insulin resistance, and early death. Muscle is your largest glucose sink. Two heavy compound sessions a week reverses the curve even in people starting at 70.
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