The Science Of How To Fall Asleep Quickly - Andrew Huberman

Quick Overview

Andrew Huberman suggests that people struggling to fall asleep quickly, especially those on low-carb diets or who are generally health-conscious, should focus on gently rocking their body or eyes in slow, alternating directions (counter-clockwise then clockwise, or vice versa) just before sleep, as this movement helps the vestibular system communicate with the cerebellum to signal the body to calm down, effectively countering the racing mind often caused by high cortisol levels or lack of glucose/carbohydrate intake late in the day.

Key Points: People struggling to fall asleep, particularly those on low-carb or keto diets, often have elevated baseline cortisol levels. The recommended technique involves gently rocking the eyes slowly from side to side (counter-clockwise then clockwise) just before sleep. This eye movement engages the vestibular system, which communicates with the cerebellum to signal the body to calm down, compensating for the lack of glucose/carbohydrate spike often needed for relaxation. The speaker notes that this method is particularly helpful because the vestibular system has an inherent asymmetry, meaning rocking in one direction and then the other sends opposing signals that help transition the body into a resting state. For those who struggle with a racing mind at night, this technique provides a cognitive task that helps override the overactive sympathetic nervous system. The speaker also mentions that adequate hydration/electrolytes (like those in LMNT) and avoiding late-day starchy carbs are crucial for maintaining healthy cortisol levels conducive to sleep.

Context: This segment features Andrew Huberman discussing practical, science-backed methods for improving sleep onset latency, specifically addressing issues commonly faced by individuals following restrictive diets like ketogenic or very low-carbohydrate diets. He links difficulty sleeping to elevated evening cortisol levels and discusses how specific physical movements, rather than just trying to stop thinking, can actively calm the nervous system.