In this Huberman Lab Essentials episode, I explain how the immune system defends against infection and describe the relationship between the immune and nervous systems. I discuss the immune system's three primary layers of defense, emphasizing how each contributes to protection from infection. I share practical tools to enhance immune function and accelerate recovery from sickness, including specific breathing patterns, sleep positioning and targeted supplementation. I also explore the powerful mind-body connection, showing how mindset and nervous system activation can directly influence the body's ability to heal. Episode show notes: https://go.hubermanlab.com/rzAunNW 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/poOf8b2WE2g 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://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* Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer