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Portrait of Marco Elling

Marco Elling

Exercise physiologist

Writes about effort, lactate, the day after hard work, and orgasm chemistry without turning any of it into a program.

Lactate leaving working muscle and being taken up by heart and other muscle
Energy metabolism

Lactate is a fuel, not the thing that burns

The hour after orgasm, with prolactin rising as arousal falls
Hormones and signaling

What an orgasm changes in the next hour

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 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