09/08/2026
If you keep waking up at 3 a.m., your circadian rhythm and the hormonal shifts of menopause may both be playing a role.
Your body clock affects far more than sleep. It helps regulate cortisol, melatonin, insulin sensitivity, appetite hormones, and the repair that happens overnight. But modern life has flattened the signals it relies on, while menopause can make staying asleep even harder.
The changes with the best evidence are also free: keep your wake time consistent, get outside within your first hour of waking, make your evenings darker, and front-load your meals earlier in the day.
Read the Substack article here: https://drmaryclairehaver.substack.com/p/what-is-your-circadian-rhythm-and?r=vogzo&utm_medium=ios
