Alcohol makes you fall asleep faster and can even increase deep sleep in the first half of the night. But what happens in the second half tells a different story — and it involves your heart rate, your blood sugar, and your REM sleep. This video walks through the three mechanisms and gives you four ways to start addressing them this week.

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In this video, you'll learn:- How GABA enhancement from alcohol produces the feeling of deeper early sleep — and why that comes at a cost

- The autonomic imbalance alcohol creates: elevated heart rate, reduced heart rate variability, and impaired cardiovascular braking during sleep

- How alcohol can suppress overnight glucose production — triggering adrenaline and cortisol that wake you up in a wired, activated state

- Why REM sleep gets delayed and reduced, even at doses as low as 1–2 drinks

- Four strategies for reducing alcohol's sleep impact — including dose tapering, earlier timing, and ritual substitution
─────────────────────────About Kat Fu, M.S., M.S.Dual master's degrees in Engineering and Biomechanics. Since 2007, I've applied an engineer's approach to health optimization — now focused on sleep. I help high-agency adults get dependable sleep, better energy, and long-term brain protection through The Longevity Vault.Substack: https://thelongevityvault.substack.com/LinkedIn: https://www.linkedin.com/in/thekatfu/The Longevity Vault: https://thelongevityvault.com/Disclaimer: This content is for informational and educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider.