Sauna vs Cold Plunge for Athletes: Which Is Better for Recovery?

By Fitdrip Editorial Team · Last updated: October 2026

Sauna vs cold plunge comes down to your goal. A cold plunge is the better tool when you need to feel less sore for a game or session within about 24 hours. A sauna is the safer daily habit when you are building strength or muscle, and it has some evidence for endurance. Most athletes benefit from both, timed differently.

Quick answer
- Cold plunge (cold-water immersion): best for short-term recovery. A 2022 meta-analysis of 52 studies found it reduced muscle soreness and improved perceived recovery 24 hours after high-intensity exercise.
- Sauna: better fit after strength sessions. Regular cold plunges right after lifting blunted strength and muscle gains in a 12-week trial; sauna has no such signal.
- Endurance: a small study of six runners found three weeks of post-training sauna improved run time to exhaustion.
- Rule of thumb: cold when you need to perform again soon, heat when you are in a building phase.

This article is general information, not medical advice. Talk to a doctor before using heat or cold exposure if you have a heart condition, high blood pressure, are pregnant, or have any other health concern.

What is the difference between a sauna and a cold plunge?

A sauna is a heated room, traditionally Finnish-style, where you sit in dry or humid heat. An infrared sauna heats the body with infrared panels at lower air temperatures. A cold plunge is a form of cold-water immersion (CWI): sitting in cold water, usually up to the waist or chest, for a set number of minutes. Contrast therapy means alternating between the two, often with rest in between, which is the format you see at Nordic spas and thermal circuits.

They push your body in opposite directions: heat raises your temperature and makes you sweat, cold pulls heat out of muscle and skin. That is why the research on each looks so different.

Does a cold plunge help muscle recovery?

Yes, for short-term soreness and how recovered you feel. The strongest evidence is a 2022 systematic review and meta-analysis in Sports Medicine by Moore and colleagues, which pooled 52 studies comparing cold-water immersion with passive recovery. After high-intensity exercise, cold-water immersion improved muscle soreness, perceived feelings of recovery, muscular power, and blood creatine kinase (a marker of muscle damage) at 24 hours.

There are limits. The same review found no significant effect on the recovery of strength performance, after either eccentric or high-intensity exercise. After eccentric-heavy work (think downhill running or slow negatives), cold water only helped muscular power at 24 hours. The authors also reported that shorter durations and lower temperatures tended to produce the largest effects for some outcomes.

What this means for athletes: a cold plunge is a reasonable tool for tournament weekends, two-a-days, back-to-back games, or travel schedules where feeling fresh tomorrow matters more than long-term adaptation.

Can cold plunging after lifting hurt your gains?

It can, if you do it after every strength session. A study by Roberts and colleagues published in The Journal of Physiology in 2015 had 21 physically active men strength train twice a week for 12 weeks. After each session, one group sat in water at about 10°C for 10 minutes; the other did 10 minutes of easy cycling. Strength and muscle mass increased more in the active recovery group. Type II muscle fibre size and the number of myonuclei per fibre increased in the cycling group but not in the cold-water group.

In a second experiment in the same paper, cold water blunted markers of the muscle-building response (satellite cell activity and signalling linked to hypertrophy) in the 48 hours after a workout. The authors concluded that cold-water immersion as a regular post-exercise strategy "should be reconsidered."

What this means for athletes: if you are in an off-season or hypertrophy block, keep the cold plunge away from your lifting sessions. Use it on non-lifting days, before competition, or skip it.

Does sauna improve athletic performance?

There is early evidence for endurance athletes. In a 2007 crossover study in the Journal of Science and Medicine in Sport, Scoon and colleagues had six male distance runners take a humid sauna at about 90°C for about 31 minutes right after training, roughly 13 times over three weeks. Compared with their control period, run time to exhaustion increased by 32%, which the authors estimated equals about a 1.9% improvement in an endurance time trial. Plasma volume rose by 7.1%, and the performance gains tracked closely with changes in blood volume.

Treat this as promising, not proven: six runners is a tiny sample, all men. Still, it offers a plausible mechanism (more blood volume) and a usable template.

Is regular sauna use good for your health?

Long-term data points that way, with a big caveat. A Finnish cohort study published in JAMA Internal Medicine in 2015 followed 2,315 middle-aged men for a median of 20.7 years. Compared with men who used a sauna once a week, those who went four to seven times a week had a lower risk of sudden cardiac death, fatal coronary heart disease, fatal cardiovascular disease, and death from any cause.

The caveat: this was an observational study of Finnish men aged 42 to 60. It shows an association, not proof that saunas caused the lower risk. People who sauna often may differ in other ways. It is a good reason to keep a sauna habit, not a reason to treat the sauna as medicine.

Sauna vs cold plunge: how do they compare?

When should athletes use a sauna vs a cold plunge?

Match the tool to the phase of your season, not to what is trending on social media.

1. Building phase (off-season, hypertrophy, strength blocks). Default to sauna after training. Keep cold plunges off lifting days.
2. Endurance base or heat-prep block. Post-run sauna sessions a few times a week fit the protocol used in the Scoon study. Build up gradually.
3. In-season, back-to-back games, or tournaments. Cold plunge after hard efforts when you need to feel fresh within 24 hours.
4. Travel days and big weeks. A contrast circuit (heat, cold, rest) is a solid way to downshift. Our guide to when a recovery spa day actually helps covers how to run a circuit without overdoing it.
5. Any phase. Recovery tools sit on top of sleep, food, and smart programming. They do not replace them.

Should you do sauna or cold plunge first?

There is no strong evidence for one fixed order. If your priority is muscle gain, ending with heat (or leaving out the cold) after lifting keeps you clear of the effect seen in the Roberts study. If you are using contrast therapy simply to relax on a rest day, follow the facility's circuit and stop while you still feel good.

How do you start safely?

Start conservative. Go shorter and less extreme than the protocols above, stay hydrated, and get out if you feel dizzy, light-headed, or unwell. Never plunge alone in open water, and do not compete with friends over who lasts longest. If you have a heart condition, blood pressure issues, or are pregnant, check with your doctor first.

Where can you find a sauna or cold plunge in your city?

Most athletes don't own a sauna or chiller tub, so the real question is where to go. Fitdrip lists recovery businesses by city, including contrast-therapy studios, Nordic spas, and thermal circuits. In Toronto, the spas and recovery category includes sauna and cold plunge spots such as Othership and Alterior Sauna & Cold Plunge. In Montreal, the spas and recovery listings include thermal-circuit options such as Bota Bota. Elsewhere, start from the Fitdrip cities page and open your city's recovery category.

Before you book, check the basics: hours that fit after training, clear instructions for the circuit, clean facilities, and whether drop-ins are allowed.

FAQ

Is a sauna or cold plunge better for athletes?

Neither is better across the board. A cold plunge has stronger evidence for reducing soreness and improving how recovered you feel 24 hours after high-intensity exercise. A sauna is a better fit during strength and muscle-building phases, because regular cold-water immersion after lifting blunted gains in a 12-week trial. Many athletes use sauna as a habit and save cold plunges for competition periods.

How long should a cold plunge be after a workout?

Protocols vary across studies. In the Roberts et al. 2015 strength study, participants sat in water at about 10°C for 10 minutes. The 2022 Moore et al. meta-analysis found that shorter durations and colder temperatures tended to give the largest effects for some outcomes. Beginners should start shorter and less cold than research protocols and build up gradually.

Does a cold plunge after lifting kill gains?

It can reduce them if it becomes a routine. In a 12-week study of 21 active men, those who sat in cold water for 10 minutes after each strength session gained less strength and muscle than those who did easy cycling instead. If muscle and strength are your priority, schedule cold plunges on non-lifting days or skip them during building blocks.

How often should athletes use a sauna?

The research gives ranges, not a prescription. In the Scoon et al. runner study, athletes used a sauna after training about 13 times over three weeks. In the Finnish cohort study, men who used a sauna four to seven times a week had lower cardiovascular and all-cause mortality than once-a-week users, though that study shows association, not cause.

Is it safe to use a sauna and cold plunge together?

Contrast therapy is common at Nordic spas and recovery studios, and many healthy athletes use it. Start with short rounds, rest between heat and cold, stay hydrated, and stop if you feel dizzy or unwell. People with heart conditions, high blood pressure, or who are pregnant should speak to a doctor before trying heat or cold exposure.

Find your recovery spot

Pick the tool that matches your training phase, then find a place you will actually use. Browse spas and recovery in Toronto, Montreal, or any city on Fitdrip, and build your recovery stack close to where you train.

Run a sauna, cold plunge, or recovery studio? List your business on Fitdrip and get found by athletes in your city.