Benefits of Sauna & Deliberate Heat Exposure | Huberman Lab Essentials

Andrew Huberman

Mar 12, 2026

Episode description

In this ⁠Huberman Lab Essentials⁠ episode, I discuss the mechanisms through which deliberate heat exposure enhances both physical and mental health.

I outline specific protocols for deliberate heat exposure, including recommended temperature ranges, frequency, timing, duration and sauna alternatives. In addition, I explain how to tailor your heat protocols to support your specific goals, such as increasing growth hormone, reducing cortisol or supporting cognitive health.

Show notes: https://go.hubermanlab.com/VsMKdhm

Watch more Huberman Lab Essentials: https://youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S&si=a1_sA7rUT-fE0OM5

Huberman Lab
Instagram: https://www.instagram.com/hubermanlab
Threads: https://www.threads.net/@hubermanlab
X: https://x.com/hubermanlab
Facebook: https://www.facebook.com/hubermanlab
TikTok: https://www.tiktok.com/@hubermanlab
LinkedIn: https://www.linkedin.com/in/andrew-huberman
Website: https://www.hubermanlab.com
Newsletter: https://www.hubermanlab.com/newsletter

Timestamps
00:00:00 Heat Exposure
00:00:47 Shell vs Core Temperature; Heat Caution & Hyperthermia
00:02:24 Body & Brain Circuit to Heat Up & Cool Down
00:05:31 Deliberate Heat Exposure & Health Benefits; Tool: Sauna Temperature Range, Duration, Frequency
00:10:45 Sauna Types, Alternatives to Sauna
00:12:26 Sauna Mechanism; Reduced Cortisol; Tool: Hot/Cold Contrast
00:16:14 Heat Shock Protein Activation & Sauna
00:17:54 DNA Repair, FOXO3 & Sauna, Cognition & Health Benefits
00:21:25 Sauna & Increase Growth Hormone
00:27:22 Sauna Timing, Sleep & Growth Hormone, Tools: Fasting; Hydration
00:30:42 Improve Mood, Endorphins & Sauna; Dynorphins
00:35:50 Recap Sauna Protocols: Benefits, Frequency, Duration & Timing

#HubermanLab #Science #Health #HeatExposure

Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer

Mindsip insights from this episode:

Utilize sauna to activate longevity gene for extended lifespan

Regular sauna exposure upregulates the FoxO3 gene, which is involved in DNA repair, and people with hyperactive versions of this gene are 2.7 times more likely to live to 100.

#longevity

#sauna

Utilize any heat source to gain sauna health benefits

You can achieve the health benefits of a sauna with any method that safely heats up your body's core and shell, such as a hot bath or exercising in warm clothes.

#recovery

#sauna

Fast before sauna to enhance growth hormone release

To maximize the growth hormone release from a sauna session, do it while fasted or at least two to three hours after eating, as insulin blunts the effect.

#growth-hormone

#sauna

Increase sauna frequency to enhance longevity and reduce cardiovascular risk

Using a sauna four to seven times per week makes you 50% less likely to die of a cardiovascular event compared to people that went into the sauna just once a week.

#longevity

#sauna

Utilize infrequent sauna sessions to maximize growth hormone boost

An intense but infrequent sauna protocol, such as two hours total in one day, can cause a temporary 16-fold increase in growth hormone, but the effect diminishes with frequent use.

#growth-hormone

#sauna

Hydrate with 16 ounces of water for every 10 minutes in sauna

As a general rule, make sure you drink at least 16 ounces of water for every 10 minutes you spend in the sauna to replace lost fluids.

#hydration

#sauna

Leverage discomfort from heat exposure to enhance mood

The discomfort felt during heat exposure releases a molecule called dynorphin, which makes your brain's 'feel-good' endorphin system more sensitive and effective over time.

#mood

#stress

Utilize sauna at night to enhance sleep quality

Using a sauna later in the day can improve sleep because the subsequent drop in your core body temperature is a key signal for your body to fall asleep.