Why So Many People Wake Up at 3 AM?
Understanding Nighttime Cortisol Rhythms: Gentle Ways to Help Your Nervous System Settle Back into Sleep For a period of time, I kept waking up at almost exactly 3:12 in the morning. Not 2:45. Not 3:30. Three twelve. Night after night. At first I assumed it was random. But after a while the pattern started to feel almost uncanny. I would wake up fully alert, and suddenly my brain wanted to review everything—my schedule, conversations from the day, the future of humanity… you know, the usual middle-of-the-night material. Eventually I learned that this timing is actually quite common. In the early morning hours the body naturally releases a small rise in cortisol, a hormone that helps us wake up and mobilize energy for the day. It’s part of our normal [...]