Andrew Huberman explains the structure and functions of the lymphatic system, how it interfaces with the blood circulatory system, and why it is essential for clearing cellular waste, supporting immunity, and maintaining healthy tissues. He explores how movement, breathing, sleep, and specific postures influence lymphatic and glymphatic (brain) clearance, and how impairments can contribute to issues like lymphedema, brain fog, and visible puffiness in the face. He also discusses links between exercise, cardiac lymphatic vessels, brain health, and how light exposure and gentle manual techniques can support lymphatic function and appearance.
Andrew Huberman explains how the immune system works, outlining the three main defense layers: physical barriers like skin and mucus, the innate immune response, and the adaptive immune system that generates antibodies. He describes how sickness behavior arises via neural and blood-borne signals, then details specific nervous-system-based tools-sleep posture, a cyclic hyperventilation breathing protocol, mindset effects on dopamine, fascia-targeted electroacupuncture, and spirulina-that can reduce inflammation, support immune function, and potentially shorten illness duration.