Andrew Huberman on why overheating limits performance more than muscle fatigue, and how palmar cooling extends endurance by regulating core temperature.
Key Insights
Overheating halts performance before muscular failure
Palms, face, and soles are thermal radiators—target these for rapid cooling
Palmar cooling can extend workout volume by 30-40%
Temperature regulation is trainable through deliberate exposure
"The body adapts to what you consistently demand of it—stress builds resilience when applied deliberately."