The Surprising Science Behind Muscle Testing Have you ever had a gut feeling about something before you could explain why? A tightening in your chest when a decision felt wrong, or a sense of ease when it felt right? That's not just a metaphor. It's biology. And it's the foundation of one of the most fascinating tools I use with clients every week: muscle testing. A little throwback... Muscle testing (sometimes called muscle monitoring) wasn't dreamed up in a lab. It was disc