The Effects of Melatonin on Energy Production

The less fit a person is, the more likely they are to shift towards anaerobic glycolysis rather than mitochondrial respiration as their baseline mode of energy production. Melatonin interplays with that by facilitating mitochondrial respiration and shifting it back towards its optimal state. Andrew Huberman's opinion on melatonin lowering testosterone is based on a rodent study. But there have been studies showing that it's quite the opposite.