FitFinder

Recovery5 min read

Sauna, ice baths & recovery: what actually helps

Saunas and ice baths have gone from fringe to everywhere, and for good reason — used sensibly they feel great and can help you recover and de-stress. They're not magic, and there are a few safety basics worth knowing. Here's the honest version.

What the sauna does

A sauna heats you up, which relaxes muscles, opens you up, and — for a lot of people — is simply a brilliant way to switch off and de-stress. Regular sauna use tends to leave people feeling relaxed and sleeping better, and it's a pleasant ritual to bookend a workout or a hard week.

Hydrate before and after, start with shorter sessions (8–15 minutes), and step out if you feel light-headed. It's not a competition to stay in longest.

What ice baths and cold do

Cold immersion — an ice bath or cold plunge — is bracing, wakes you up, and many people find it leaves them feeling calm and clear once the initial shock passes. A few minutes is plenty; you don't need to suffer for ages to get the effect.

Ease in: control your breathing, keep the first dips short, and never push through genuine distress. Cold water is a real stressor on the body, so if you have heart issues or you're pregnant, check with a doctor first.

Contrast therapy: hot then cold

Alternating sauna and cold (contrast therapy) is the ritual a lot of studios now build a whole session around — a few rounds of heat then a plunge. Most people do it because it feels fantastic and resets their head as much as their body.

One nuance worth knowing: if your main goal right after a heavy strength session is to build muscle, a long ice bath immediately afterwards may slightly blunt that adaptation. On other days, or a few hours later, it's a non-issue — so save the long cold plunges for rest days or cardio days if muscle growth is your priority.

Where recovery fits

Recovery isn't only the cold plunge — it's sleep, food, easy movement and managing stress, and the heat/cold stuff sits on top of those as a nice-to-have. Don't skip the basics to chase the trendy bit.

Think of sauna and cold as tools for feeling good and managing stress that happen to pair well with training — not a substitute for resting properly between hard sessions.

Ready to try recovery?

Browse recovery studios across Ireland and book your first class on FitFinder.

Common questions

Do ice baths actually help recovery?
They can leave you feeling fresher and are a great stress-reset, and they reduce next-day soreness for many people. The one caveat: a long ice bath immediately after heavy strength work may slightly blunt muscle-building, so time it for rest or cardio days if growth is your goal.
How long should I stay in the sauna or cold?
Start conservatively — roughly 8–15 minutes in a sauna, and just a few minutes in cold water — and build from there. Hydrate around sauna sessions, control your breathing in the cold, and step out the moment you feel unwell.
Is it safe for everyone?
For most healthy people, used sensibly, yes. But heat and especially cold are real stressors — if you're pregnant, have heart or blood-pressure issues, or any medical condition, check with your doctor before starting.

Keep reading