This is the second episode of Huberman Lab Essentials — short episodes (approximately 30 minutes) focused on essential science and protocol takeaways from past Huberman Lab episodes. This Essentials episode offers insights into what makes us sleepy, helps us sleep soundly, and feel awake and alert. It covers a wide range of tools for anyone looking to improve their sleep and wakefulness, with the science and reasoning behind each tool explained. Essentials will be released every Thursday, and our full-length episodes will still be released every Monday. Episode show notes: https://go.hubermanlab.com/FESj0fJ Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes. Watch the full-length episode: https://youtu.be/nm1TxQj9IsQ Watch more Huberman Lab Essentials episodes: https://youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S *Follow Huberman Lab* Instagram: https://www.instagram.com/hubermanlab Threads: https://www.threads.net/@hubermanlab X: https://x.com/hubermanlab Facebook: https://www.facebook.com/hubermanlab TikTok: https://www.tiktok.com/@hubermanlab LinkedIn: https://www.linkedin.com/in/andrew-huberman Website: https://www.hubermanlab.com Newsletter: https://www.hubermanlab.com/newsletter *Timestamps* 00:00:00 Introduction to Sleep & Wakefulness 00:01:11 The Science of Sleep: Adenosine Explained 00:03:30 Circadian Rhythms: The Body’s Internal Clock 00:05:08 The Role of Cortisol & Melatonin 00:10:16 Maximizing Morning Light Exposure 00:14:12 Other Factors Influencing Circadian Rhythms 00:16:08 The Impact of Light on Sleep Quality 00:24:31 Napping & Non-Sleep Deep Rest #HubermanLab #Science #Sleep Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer