In this Huberman Lab Essentials episode, I answer your most frequently asked questions about science-backed tools for improving alertness, enhancing learning, and achieving quality sleep. I also discuss the optimal times for exercising and eating, how to properly time light exposure, as well as methods for strategically adjusting your body temperature to influence your nervous system. Huberman Lab Essentials are short episodes (approximately 30 minutes) focused on essential science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, and our full-length episodes will still be released every Monday. Episode show notes: https://go.hubermanlab.com/JII3SU7 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/nwSkFq4tyC0 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 Twitter: https://twitter.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 Huberman Lab Essentials 00:00:37 Understanding Circadian Rhythms & Light 00:02:17 Impact of Red Light on Circadian Rhythms 00:03:12 Light Through Windows & Circadian Clocks 00:05:05 Seasonal Changes & Circadian Rhythms 00:07:36 Neurotransmitters & Mood Regulation 00:09:49 Exercise & Circadian Rhythms 00:11:52 Non-Sleep Deep Rest (NSDR) & Learning 00:19:23 Nootropics & Cognitive Enhancement 00:21:55 Temperature & Circadian Rhythms 00:27:04 Food, Neurotransmitters & Circadian Rhythms 00:29:52 Self-Experimentation & Conclusion #HubermanLab #Science Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer