Have you ever woken up a second before your alarm, say, at 6:59 AM, even though it's set for 7:00 AM? It's not magic. It's your internal "alarm clock," adrenocorticotropic hormone, or ACTH, preparing your body for the day. ACTH, produced by the anterior pituitary gland in the brain, stimulates the adrenal glands to produce cortisol. Levels of this "stress hormone" rise approximately 60-90 minutes before normal awakening, preparing your body for the stress hormone. Research, for example, by scientists at the University of Lübeck, shows that with a stable sleep schedule, the body adapts. Your circadian rhythm learns to anticipate morning, and ACTH peaks precisely at the moment you wake up. This hormone not only wakes you up but also activates your metabolism, increases glucose levels for energy, and improves concentration. Without an alarm clock, your body will still try to wake you up, but today's chaotic schedule disrupts this delicate mechanism. Thus, ACTH is your personal wake-up call. Listen to this natural signal! A consistent sleep schedule—for example, going to bed before midnight and waking up at 7 a.m. every day—will significantly improve your well-being.