Intro

In this 7th installment of their AMA series, Matt Walker and Dr. Eti Ben Simon dive into strategies for improving deep non-REM sleep. They highlight the benefits of vigorous exercise, citing a study by Kaspar Vogt that shows how exercise enhances the quality and stability of deep sleep. Additionally, they discuss how temperature manipulations, like using high heat capacity mattresses, can also improve sleep quality. Interesting insights include findings that intense exercise can improve deep sleep across various age groups, with significant benefits noted in older adults and children.

The episode also touches on the impact of alcohol, noting that it can be extremely disruptive to sleep. They also go on to explain how stress and anxiety can affect deep sleep by activating the fight-or-flight system and increasing cortisol levels. Our duo discusses various techniques for managing anxiety, such as cognitive behavioral therapy (CBT), mindfulness meditation, exercise, deep breathing, and progressive muscle relaxation, all of which can significantly reduce anxiety levels and improve sleep quality. Their conversation finishes up by addressing the potential benefits of saunas and hot springs in enhancing sleep, and underscoring the importance of a consistent bedtime routine.

Please note that Matt is not a medical doctor, and none of the content in this podcast should be considered medical advice in any way, shape, or form, nor prescriptive in any way.

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As always, if you have thoughts or feedback you’d like to share, please reach out to Matt on Instagram.