Sauna
Andrew Huberman's Sauna Protocol for Longevity and Brain Health
Andrew Huberman's sauna protocol for longevity and brain health points to 4 to 7 sauna sessions per week, each 5 to 20 minutes at 80 to 100°C (176 to 212°F) in a hot traditional sauna. The number behind it: in the Finnish research he cites, men who used a sauna 4 to 7 times a week had a 40% lower risk of all-cause mortality than once-a-week users. Heat also nudges up BDNF for the brain and switches on heat shock proteins for cellular repair. A gentler 2 to 3 sessions per week is the practical place to start.
Key Takeaways
- Frequency drives the effect: the longevity signal appears at 4 to 7 sessions per week; 2 to 3 per week is a sensible entry point.
- The headline number: a JAMA Internal Medicine study of over 2,000 Finnish men found a 40% lower all-cause mortality risk in the most frequent sauna users versus once-a-week.
- Heat, not comfort, is the stimulus: the strongest data comes from traditional saunas at 80 to 100°C, which train the heart much like moderate exercise.
- Brain and cell benefits: heat raises BDNF (linked to memory and mood) and activates heat shock proteins that help repair damaged proteins.
- Growth hormone is oversold: a short-term GH spike is real but has not been shown to extend lifespan on its own.
- Building the habit at home is the hard part — explore Calore's cedar and infrared saunas to make 4 to 7 weekly sessions realistic.
What is Andrew Huberman's sauna protocol?
Huberman's core sauna protocol for general health is to heat a traditional sauna to 80 to 100°C (176 to 212°F), sit for 5 to 20 minutes per session, and repeat 2 to 3 times per week at minimum, scaling up to 4 to 7 times per week for the fullest cardiovascular and longevity effect. He is a Stanford neurobiologist summarising published research, not a physician prescribing to you — the numbers come from his own Deliberate Heat Exposure protocols and the Finnish studies below.
He splits heat exposure by goal. For longevity and heart health, weekly frequency matters more than any single long sauna. For recovery, a separate growth-hormone routine uses multiple longer rounds with cooling between them. The two are not the same, and mixing them up is the most common mistake people make with the protocol.
Stat: Google's own AI Overview summarises Huberman's routine as roughly 57 minutes of total sauna time per week — e.g. four 15-minute sessions — at 80 to 100°C, sourced from the Huberman Lab heat-exposure guide.
The protocol at a glance
| Goal | Frequency | Session structure | Temperature |
|---|---|---|---|
| Longevity & heart health | 4–7× / week | 5–20 min, single sit | 80–100°C (176–212°F) |
| Beginner / maintenance | 2–3× / week | 10–15 min, build up slowly | 70–90°C (160–194°F) |
| Growth hormone (recovery) | 1–3× / week | Multiple 20-min rounds + 5-min cool-downs | 80–100°C (176–212°F) |
| Post-workout | After training | 20–30 min, rehydrate with water + salt | 80–90°C (176–194°F) |
The longevity data Huberman cites
The centrepiece is a large Finnish cohort study showing that more frequent sauna use tracks with a lower risk of dying. Published in JAMA Internal Medicine by Laukkanen and colleagues, it followed over 2,000 middle-aged Finnish men for about 20 years as part of the Kuopio Ischaemic Heart Disease study.
The dose-response pattern is what makes it compelling. Compared with men who used a sauna once a week or less, those using it 2 to 3 times per week had a 24% lower risk of all-cause mortality, and those using it 4 to 7 times per week had a 40% lower risk. The same study reported lower rates of fatal cardiovascular events at higher frequencies.
Stat: A 20-minute session can push your heart rate to 120–150 beats per minute — a cardiovascular load comparable to moderate exercise, but without the joint impact. Over months, that stimulus is thought to reduce arterial stiffness.
Worth stating plainly: this is observational data. It shows a strong association, not proof that heat alone causes longer life — frequent sauna users may differ in other ways. But it is one of the most robust human datasets on heat and mortality, which is why it anchors the conversation.
Brain health, BDNF, and mood
Heat exposure supports the brain partly by raising brain-derived neurotrophic factor (BDNF), a protein central to the growth, survival, and plasticity of neurons. In a randomised controlled trial by Glazachev and colleagues, repeated whole-body hyperthermia increased circulating BDNF and was associated with reduced anxiety and improved quality of life.
Alongside BDNF, sauna sessions raise endorphins and can blunt cortisol, which is why so many people describe the post-sauna state as calm and clear-headed. Better cardiovascular health also means better cerebral blood flow, and the research literature links regular sauna use to lower rates of some age-related cognitive decline — an association, not a guarantee.
Heat shock proteins and cellular repair
Heat shock proteins (HSPs) are the cellular cleanup crew that sauna heat switches on. When cells are briefly stressed by heat, they produce these chaperone proteins, which help refold damaged proteins and clear misfolded ones — a form of quality control linked to healthier ageing.
This is the concept of hormesis: a mild, controlled stress that triggers a protective adaptation. The sauna is not damaging you; it is nudging your cells to repair and reinforce. Heat also boosts nitric oxide, which relaxes blood vessels, improves blood flow, and supports the cardiovascular benefits described above.
Growth hormone: the honest version
Sauna heat can cause a large, short-term spike in growth hormone, and this is the claim that gets exaggerated online. The GH protocol Huberman describes — multiple 20-minute rounds with cold cool-downs in between, done infrequently — is a specialised recovery tool, not the longevity routine.
Here is the honest part: a temporary GH spike has not been shown to extend lifespan by itself. If your goal is living longer and protecting your brain, consistency at 4 to 7 sessions per week does the heavy lifting — not chasing hormone peaks. Treat the GH protocol as an occasional add-on for training recovery, and pair the cooling step with a proper cold plunge if you want the full contrast-therapy effect.
Traditional vs infrared for this protocol
The longevity studies used hot traditional Finnish saunas, so if you want to match that research literally, temperature matters. Traditional saunas run at 80 to 100°C; infrared saunas run cooler, around 40 to 60°C (104 to 140°F), heating your body directly rather than the air around you.
That does not make infrared pointless — it means it is a different tool. Many people find infrared easier to tolerate for longer, more frequent sessions, which is exactly the consistency the protocol rewards. A hot traditional chamber like the Black Cedar Sauna Chamber matches the studies most closely, while an indoor infrared sauna can be the more livable daily habit. Choose the one you will actually use 4 to 7 times a week.
| Feature | Traditional Finnish sauna | Infrared sauna |
|---|---|---|
| Temperature | 80–100°C (176–212°F) | 40–60°C (104–140°F) |
| Matches the longevity studies | Yes (direct) | Not a like-for-like match |
| Heat feel | Intense, air + steam | Gentler, radiant |
| Easiest for daily consistency | For heat-lovers | For most people |
How to apply it at home in Canada
A realistic weekly plan that follows Huberman's recommendations looks like 3 to 4 sessions of 15 to 20 minutes, hydrating well and cooling gradually, run consistently for months rather than in occasional heroic bouts. Use these five steps to structure a session.
- Set the heat. Traditional: aim for 80–90°C (176–194°F). Infrared: 45–60°C (113–140°F). Beginners start lower and shorter.
- Time it right. Late afternoon or evening can help — the drop in body temperature afterward mirrors your natural pre-sleep cooling and may improve sleep.
- Sit 15–20 minutes. Breathe slow. Exit early if you feel lightheaded; the goal is a repeatable habit, not endurance.
- Hydrate deliberately. Aim for roughly 500 ml (about 16 oz) of water per 10 minutes in the heat, and replace electrolytes with a pinch of salt if you sweat heavily.
- Cool down. Step into cool air or a cold plunge. Finish, rest, and let the calm settle in.
The right sauna accessories — a headrest, a timer, a water bottle within reach — make it far more likely you will keep the ritual going. Breathe deep. Heat up. Cool down. Repeat.
Safety first — this is general wellness information, not medical advice. Sauna heat places genuine load on your cardiovascular system. If you are pregnant, have uncontrolled high blood pressure, cardiovascular instability, or have had a recent cardiac event, talk to your doctor before starting. Stop and cool down if you feel dizzy, nauseous, or unwell, and never sauna after drinking alcohol.
Safety and who should be cautious
Most healthy adults tolerate sauna heat well, but it is not for everyone. Huberman himself frames the protocols as things to approach gradually and personalise. The reason is simple: heat raises heart rate and dilates blood vessels, which is beneficial as a stimulus but risky if your cardiovascular system is already unstable.
Build up over two to three weeks rather than jumping straight to 100°C. Skip the sauna if you are ill or feverish, and treat the growth-hormone rounds as advanced, not a starting point. When in doubt, shorter and cooler beats longer and hotter.
The Calore Verdict
Andrew Huberman's sauna message is refreshingly boring in the best way: sit in real heat, often, for years. The science that holds up — the Finnish mortality data, the BDNF and heat-shock-protein responses — rewards frequency and consistency, not intensity theatrics or growth-hormone hacks. Pick a sauna you will genuinely use 4 to 7 times a week, keep sessions in the 15–20 minute range, hydrate, and cool down.
Key finding: the strongest longevity signal comes from using a hot traditional sauna 4 to 7 times per week — associated with a 40% lower all-cause mortality risk — so the sauna you'll actually keep using beats the "optimal" one gathering dust.
Frequently Asked Questions
What is Andrew Huberman's sauna protocol?
For cardiovascular health and longevity, Huberman points to 4 to 7 sessions per week of 5 to 20 minutes at 80 to 100°C (176 to 212°F), based on the Finnish research. A more accessible starting point is 2 to 3 sessions per week. A separate, more demanding growth-hormone protocol uses 1 to 3 sessions per week with multiple 20-minute rounds and cool-downs, and is not the longevity routine.
How long should you stay in a sauna according to Huberman?
Roughly 10 to 20 minutes per session, exiting sooner if you feel lightheaded. The Finnish mortality data links greater weekly time in the heat with lower risk, but the benefit comes from consistency across the week, not from any single marathon session.
Does sauna use really lower your risk of dying?
An observational study in JAMA Internal Medicine followed over 2,000 Finnish men for around 20 years and found that men who used a sauna 4 to 7 times per week had a 40% lower risk of all-cause mortality than those using it once a week or less. It is an association, not proof of cause, but it is one of the largest datasets Huberman cites.
Can an infrared sauna give the same benefits as a traditional one?
The strongest longevity data comes from hot traditional Finnish saunas at 80 to 100°C. Infrared saunas run cooler, around 40 to 60°C, and deliver heat differently, so they are not a like-for-like substitute for those specific studies. Many people still choose infrared for comfort and gentler heat, and can build a consistent, longer-session routine around it.
Is the Huberman sauna protocol safe for beginners?
Start conservatively with one shorter, cooler session and build duration and heat over two to three weeks. Hydrate before and after, and cool down gradually. Anyone who is pregnant, has uncontrolled high blood pressure, cardiovascular instability, or a recent cardiac event should speak with their doctor before starting, as sauna heat places real load on the heart.
Does the sauna growth-hormone spike make you live longer?
Not on its own. Heat can produce a large short-term rise in growth hormone, but a temporary GH spike has not been shown to extend lifespan. The longevity signal in the research is driven by consistent cardiovascular conditioning over months and years, not by chasing hormone peaks.
