This episode teaches you a lot about the immune system, immune-brain interactions and offers 12 potential tools for enhancing immune system function. I discuss how our immune system works and science-supported tools we can use to enhance our immune system. I discuss the innate and adaptive immune systems and our various microbiomes-- not just in our gut but also in our nose, eyes and mouth and how to keep them healthy. And I review how specific patterns of breathing and foods maintain a healthy mucousal barrier that is crucial for fighting infections. I discuss how certain neurochemicals called catecholamines enhance our immune system function and how to use specific breathing protocols, types and timing of heat and cold exposure, and if appropriate, supplementation to activate catecholamines. I also discuss the role and use of serotonin for sake of accessing the specific types of sleep for recovering from illness, and I discuss how to increase glymphatic "washout" of brain debris during sleep. I also review fever, the vagus nerve and the use of atypical yet highly effective compounds for rhinitis (nasal inflammation). Thank you to our sponsors: ROKA - https://www.roka.com -- code: "huberman" Athletic Greens - https://www.athleticgreens.com/huberman InsideTracker - https://www.insidetracker.com/huberman   Our Patreon page: https://www.patreon.com/andrewhuberman    Supplements from Thorne: http://www.thorne.com/u/huberman    Social: Instagram - https://www.instagram.com/hubermanlab  Twitter - https://twitter.com/hubermanlab  Facebook - https://www.facebook.com/hubermanlab Website - https://hubermanlab.com Newsletter - https://hubermanlab.com/neural-network   Links: How and Why The Immune System Makes Us Sleep - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839418/    Timestamps: 00:00:00 The Mind & Immune System, New Findings: Acupuncture & Fascia 00:03:00 Sponsors: ROKA, Athletic Greens, InsideTracker 00:07:41 Foundational Tools & Practices for of a Healthy Immune System 00:11:20 Immune System Basics: Skin/Mucous, Innate & Adaptive Immune System 00:17:08 Killer Cells, Complement Proteins (“Eat Me!” Signals), Cytokines (“Help Me!” Signals) 00:21:06 The Adaptive Immune System: Antibodies 00:28:00 Tool 1: Nasal Microbiome and “Scrubbing” Bacteria & Viruses; Nasal Breathing 00:30:33 Tools 2 & 3: (Not) Touching Your Eyes; Gut Microbiome & Fermented Foods 00:34:20 Some Interleukins Are Anti-Inflammatory 00:34:56 Sickness Behavior 00:39:08 Some People Seek Care When Sick, Others Want to be Alone 00:42:00 Sickness Behavior & Depression: Cytokines 00:43:40 Reduced Appetites When Sick: Protein, Iron, Libido 00:46:45 Vagus-Nerve Stimulation: Fever, Photophobia, Sleepiness 00:53:03 Humoral (Blood-Borne) Factors, & Choroid Change Your Brain State 00:55:04 Tools 4, 5: Reducing Sickness: Glymphatic Clearance, Pre-Sleep Serotonin, 5HTP 01:07:03 Tool 6: Hot Showers, Saunas, Baths & Cortisol, Heath-Cold Contrast 01:10:53 Feed a Fever & Starve a Cold (?), Adrenaline 01:12:36 Tool 7: Activating Your Immune System w/Cyclic-Hyperventilation, Alkalinity 01:29:10 Brain Chemicals & Cyclic-Hyperventilation; Catecholamines, Dopamine 01:32:10 Mindsets & Immune Function; Yes, You Can Worry Yourself Sick 01:37:00 Tool 8: Healthy Mindsets, Hope, Dopamine; Tool 9: Tyrosine; Tool 10: Cold Exposure 01:42:05 Once You’re Already Sick: Accelerating Recovery; Tool 11: Spirulina, Rhinitis 01:46:09 Histamines, Mast Cells 01:49:22 Tool 12: Acupuncture: Mechanism for How It Reduces Inflammation; Fascia, Rolfing  01:53:40 Mechanistic Science & Ancient Practices 01:58:00 Synthesis, Ways to Support Us (Zero-Cost), Sponsors, Supplements, Social Media   Please note that The Huberman Lab Podcast is distinct from Dr. Huberman's teaching and research roles at Stanford University School of Medicine. The information provided in this show is not medical advice, nor should it be taken or applied as a replacement for medical advice. The Huberman Lab Podcast, its employ