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Muscle the day after a long effort, sore locally rather than systemically inflamed
Recovery and repair

What the day-after ache is actually signaling

A mid-afternoon energy dip on a clock, after the post-lunch insulin rise
Energy metabolism

The afternoon dip is a pacing problem, not a moral one

A runner in the last minutes, when the keep-going signal matters more than comfort
Neural chemistry

What dopamine does in the last minutes of hard effort

A morning glucose curve sitting higher after a short night than after a full one
Hormones and signaling

How a short night changes the next morning's glucose