Introduction to MK-677 Okay, let's break down the science without getting too technical. Imagine your body has a built-in system for releasing GH in short bursts, especially during sleep or after eating. MK-677 taps into that by acting like ghrelin , the hormone your stomach makes when it's time to eat. It binds to specific ghrelin receptors  in your brain, signaling the pituitary gland—the small gland at the base of your brain—to pump out more GH naturally. This leads to ste