Using Your Nervous System to Enhance Your Immune System | Huberman Lab Essentials

About this video

Huberman explains the immune system as three layers of defense: the skin and mucosal barriers, the fast innate immune system, and the slower adaptive immune system. He describes white blood cells such as neutrophils, macrophages, and natural killer cells, plus complement proteins that tag invaders to be engulfed. Huberman explains that sickness behavior, including poor cognition and low motivation, reflects inflammatory signaling reaching the brain through fast and slow pathways. To support recovery, Huberman emphasizes sleep, describing the glymphatic system as clearing debris from the brain more actively during sleep, and he suggests elevating the heels while sleeping may increase that clearance. For congestion, Huberman discusses human trial data on spirulina for rhinitis, while noting common decongestants can cause dehydration and interfere with sleep.

Key takeaways

• Huberman describes the immune system as barrier, innate, and adaptive layers of defense.
• Huberman explains that inflammatory signals to the brain produce sickness behavior and impaired cognition.
• Huberman says the glymphatic system clears brain debris and is more active during sleep.
• Huberman suggests elevating the heels while sleeping may increase glymphatic clearance.
• Huberman cites human trials in which spirulina reduced nasal obstruction and inflammatory cytokines.

Episode details: published September 25, 2025 · 110.4K views · 36:22 long. Summary written by Self Growth Videos from the episode itself. The science and protocols described are Andrew Huberman’s, presented for education — not medical advice. Consult a qualified professional before changing your own health practices.

← Previous: Why Lifting Tempo Doesn’t Impact Muscle Growth as Much as You Think · Next: Enhance Your Learning Speed & Health Using Neuroscience Based Protocols | Dr. Poppy Crum →

All Andrew Huberman videos · Andrew Huberman profile · Huberman Lab (official site)