Why You Wake Up at 3AM (And How to Stop)

You wake up at 3 a.m. Eyes wide open. Heart racing. And you have no idea why. If this sounds familiar, you’re not alone — and you’re not imagining it. The 3 a.m. wake-up is one of the most common and least understood issues in sleep medicine. Women are disproportionately affected, especially during perimenopause and menopause. And yet most of the advice out there is either oversimplified or just plain wrong. In this video, Dr. Jen Ashton breaks down the real science behind why you’re waking up at 3 a.m. — and what to actually do about it. What you’ll learn: Why sleep is a medical necessity, not a luxury — The short and long-term consequences of poor sleep, from cognitive decline and Alzheimer’s risk to cardiovascular disease, metabolic disruption, and more. The 5 science-backed reasons you’re waking at 3 a.m. — Cortisol transitions, thermoregulatory instability, progesterone and GABA receptors, estrogen’s effect on the sympathetic nervous system, and aging sleep architecture. The myths you need to stop believing — Why alcohol isn’t your sleep friend, why melatonin won’t keep you asleep, and why everyone does not sleep the same way. What’s actually happening in your brain while you sleep — Deep sleep, REM sleep, the glymphatic system, and why the timing of your sleep cycles matters more than you think. Dr. Ashton’s doctor-driven sleep protocol — Practical, evidence-based strategies covering temperature, light, sound, air, and more — that you can start tonight. Watch the full video and tell me — which of the 5 reasons surprised you most? If you prefer science over shortcuts and nuance over noise, subscribe to my FREE weekly newsletter, Today’s Ajenda. It’s where I share clear, evidence-based insights for women navigating midlife health — without the extremes. :point_right::skin-tone-2: https://bit.ly/4t3gOYg #Sleep #Insomnia #SleepScience #Menopause #Perimenopause #WomensHealth #HormoneHealth #SleepTips #EvidenceBased #DrJenAshton joinajenda.com Ajenda by Dr. Jen Ashton | Your dose of honesty from one of America’s most-watched doctors.