Essentials: Using Your Nervous System to Enhance Your Immune System

What It Covers

Huberman explains how the nervous system controls immune function through three defense layers: physical barriers, innate response, and adaptive immunity. He provides protocols using breathing, sleep positioning, and supplements to enhance immune response and reduce inflammation.

Key Questions Answered

• •Cyclic Hyperventilation Protocol: Perform 25-30 deep breaths through the mouth followed by complete exhale and breath hold for 15-60 seconds, repeated for 3 rounds. This pattern releases adrenaline, reduces inflammatory cytokines like IL-6 and TNF-alpha, and decreases flu-like symptoms when infection begins.
• •Glymphatic System Enhancement: Elevate feet 12 degrees above head during sleep by placing pillows under heels. This positioning increases glymphatic clearance of neuroinflammation debris from the brain, accelerating recovery from infections. Apply during illness or preventatively during naps.
• •Fermented Foods for Microbiome: Consume 2-4 servings daily of low-sugar fermented foods like sauerkraut, kimchi, natto, or pickles. This strengthens the mucus lining throughout the digestive tract, reduces inflammatory cytokine activity, and maintains healthy bacterial populations that block pathogen entry.
• •Spirulina for Congestion: Take 2 grams of spirulina to reduce nasal obstruction and rhinitis symptoms. Double-blind studies with 65-129 subjects show significant decreases in nasal inflammation, improved sleep, reduced itching, and lower inflammatory cytokines compared to placebo groups.