Uploaded March 2025 | Updated September 2026, 2 weeks ago
In this Huberman Lab Essentials episode, I explain how specific hormones influence both energy levels and the immune system and discuss practical tools for increasing energy throughout the day and managing stress.
I discuss the mechanism through which cortisol and epinephrine (adrenaline) impact the brain and body and why it’s important to regulate their levels, considering factors like time of day or stress levels. I also cover the positive benefits of short-term stress and behavioral protocols to increase energy and enhance stress resilience. Additionally, I explain how to optimize hormone levels through tools like sunlight exposure, meal timing, and supplements such as ashwagandha.
Episode show notes: go.hubermanlab.com/IcLrgLk
Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes. Watch or listen to the full-length episode: youtu.be/JPX8g8ibKFc
Watch more Huberman Lab Essentials episodes: youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S
*Timestamps*
00:00:00 Huberman Lab Essentials; Immunity & Energy
00:01:34 Cortisol, Epinephrine (Adrenaline)
00:03:32 Cortisol & Epinephrine Biology
00:05:20 Timing Cortisol Release, Tool: Morning Sunlight Exposure
00:07:36 Daytime Stress, Learning & Cortisol
00:08:59 Tool: Increase Energy, Ice Baths, Cyclic Breathing, HIIT
00:13:52 Tool: Building Resilience; Cortisol vs. Epinephrine Effects, Immune System
00:17:55 Brief Stressors & Immune System
00:21:37 Chronic Stress, Cortisol, Hunger & Food Choice
00:23:56 Stress & Gray Hair?
00:24:33 Reduce Cortisol & Supplements, Ashwagandha, Apigenin
00:26:18 Optimizing Cortisol & Epinephrine, Tool: Meals, Circadian Eating, Fasting
00:28:54 Recap & Key Takeaways
Disclaimer & Disclosures: hubermanlab.com/disclaimer
In this Huberman Lab Essentials episode, I explain how specific hormones influence both energy levels and the immune system and discuss practical tools for increasing energy throughout the day and managing stress.
I discuss the mechanism through which cortisol and epinephrine (adrenaline) impact the brain and body and why it’s important to regulate their levels, considering factors like time of day or stress levels. I also cover the positive benefits of short-term stress and behavioral protocols to increase energy and enhance stress resilience. Additionally, I explain how to optimize hormone levels through tools like sunlight exposure, meal timing, and supplements such as ashwagandha.
Episode show notes: go.hubermanlab.com/IcLrgLk
Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes. Watch or listen to the full-length episode: youtu.be/JPX8g8ibKFc
Watch more Huberman Lab Essentials episodes: youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S
*Timestamps*
00:00:00 Huberman Lab Essentials; Immunity & Energy
00:01:34 Cortisol, Epinephrine (Adrenaline)
00:03:32 Cortisol & Epinephrine Biology
00:05:20 Timing Cortisol Release, Tool: Morning Sunlight Exposure
00:07:36 Daytime Stress, Learning & Cortisol
00:08:59 Tool: Increase Energy, Ice Baths, Cyclic Breathing, HIIT
00:13:52 Tool: Building Resilience; Cortisol vs. Epinephrine Effects, Immune System
00:17:55 Brief Stressors & Immune System
00:21:37 Chronic Stress, Cortisol, Hunger & Food Choice
00:23:56 Stress & Gray Hair?
00:24:33 Reduce Cortisol & Supplements, Ashwagandha, Apigenin
00:26:18 Optimizing Cortisol & Epinephrine, Tool: Meals, Circadian Eating, Fasting
00:28:54 Recap & Key Takeaways
Disclaimer & Disclosures: hubermanlab.com/disclaimer
