03/12/2026
Your body’s daily rhythm is meant to run like this: cortisol helps you get going in the morning, then gradually tapers, while melatonin takes over at night. When cortisol peaks too late, people describe the same thing over and over: “wired but tired,” 3AM waking, and a second wind right when they want to be winding down.
The basics are still the basics: morning light, earlier caffeine cutoff, and consistent sleep/wake timing. But if you’ve tightened those and the pattern keeps repeating, it’s worth asking what’s driving it.
In practice, this often means looking at blood sugar regulation (glucose/insulin/A1c), thyroid markers, and sometimes iron or inflammatory markers depending on what else is going on, because delayed sleep timing can be downstream of metabolic and endocrine stress.