Irisin Illusion: The Truth About Exercise and Brain Chemistry

For years, the fitness industry has aggressively marketed cardiovascular exercise as the ultimate hack for mental clarity, attributing this cognitive miracle to a single, highly publicized hormone: irisin. Packaged and sold as the brain's "e;miracle molecule,"e; this myokine is supposedly secreted by contracting muscles to instantly trigger neurogenesis and eradicate brain fog. However, the commer...