What to Do in a Sauna: Before, During, and After

A good sauna session follows a simple rhythm: heat, cool down, rest, and repeat. But the details of each step, from how you sit to how much water you drink, make the difference between a forgettable 15 minutes and the kind of deep relaxation that keeps people coming back for centuries. Here’s how to get the most out of every session.

Before You Go In

Start by removing all makeup and cleansing your face so your pores aren’t sealed under a layer of product. Take off any jewelry, since metal heats up fast and can burn your skin. If you’ve just worked out, shower first and change into clean clothes or a towel. Most facilities expect you to sit on a towel rather than placing bare skin directly on the wooden benches, so bring one or grab one from the front desk. Skip the socks and sneakers, which track in dirt and don’t belong in a sauna.

Hydration matters more than most people realize. Plan to drink about 16 ounces of water for every 10 minutes you spend in the heat. You can front-load some of that before you walk in. Adding a pinch of sea salt to your water helps replace the electrolytes you’ll sweat out, which prevents that washed-out, headachy feeling afterward.

Temperature and Time

Traditional Finnish saunas run between 150 and 190°F with low humidity. Most regulars settle in around 160 to 180°F. Infrared saunas operate at a lower range, typically 120 to 150°F, because the heat penetrates your body directly rather than heating the air around you. Both types deliver benefits, just on different timelines per session.

If you’re new, start with 10 to 15 minutes at the lower end of the temperature range. Your body needs a few sessions to acclimate before longer or hotter rounds feel comfortable. Experienced users often do two or three rounds of 15 to 20 minutes each, with cooling breaks in between. There’s no trophy for enduring misery. If you feel dizzy, nauseated, or uncomfortably lightheaded, step out immediately.

How to Sit and Breathe

Heat rises, so where you sit changes the intensity. The upper bench is significantly hotter than the lower one. Choose your level based on how you’re feeling that day.

When sitting, keep your back straight but relaxed, shoulders dropped, chest open, and your feet up on the bench rather than dangling below. This keeps your whole body in the same temperature zone. Lying down is even better for uniform heating: your head, torso, and feet are all at the same level, so no part of your body overheats while another stays cool.

Breathing through your nose filters and slightly cools the air before it hits your lungs, which makes high heat much more tolerable. Try diaphragmatic breathing (belly breathing) with a slow rhythm: inhale for 3 to 4 seconds, exhale for 5 to 6 seconds. That longer exhale activates your vagus nerve, which lowers your heart rate and deepens the relaxation response. This is the same mechanism behind many meditation techniques, and research shows that sauna bathing produces brainwave patterns strikingly similar to those seen during meditation, with increases in theta and alpha waves linked to vivid mental imagery and a calm, almost dreamlike state.

What to Do With Your Mind

The sauna is one of the few places where doing nothing is the point. Your phone stays outside (heat destroys electronics anyway), conversation is typically kept quiet, and there’s nowhere to be. This makes it a natural environment for mindfulness. Focus on the sensation of heat on your skin, the rhythm of your breathing, or simply let your thoughts drift without chasing them.

Some people use sauna time for a simple body scan: start at the top of your head and slowly move your attention down through each body part, noticing where you’re holding tension and consciously releasing it. Others prefer visualization or just sitting in comfortable silence. The heat itself does much of the mental work for you. As your core temperature rises, your body releases endorphins, and the combination of warmth and stillness tends to quiet a busy mind without much effort.

The Cool Down

Cooling off after each round isn’t optional. It’s the other half of the experience. In the sauna, your blood vessels expand and your heart rate climbs. When you expose your body to cold, the opposite happens: vessels constrict, your body activates its protective mechanisms, and circulation gets a powerful boost. This contrast between heat and cold is what drives the improved blood flow, faster muscle recovery, stress reduction, and endorphin release that make sauna bathing feel so good.

You have plenty of options for cooling down, and intensity is a personal choice:

  • Fresh air. Simply stepping outside or standing near an open window is the gentlest approach and ideal for beginners.
  • Cool shower. The most common method in home saunas. Start with lukewarm water and gradually turn it colder. Even 5 to 15 seconds of cool water is enough.
  • Cold water pour. A traditional technique where cold water is poured over the body all at once for an immediate, full-body shock.
  • Cold plunge or natural water. Lakes, pools, or dedicated cold tubs offer the most intense contrast. If you go this route, stay calm and control your breathing.

After cooling, wrap yourself in a towel or blanket and rest for several minutes before starting your next round. The full cycle is heat, cold, rest. Rushing back into the sauna without a proper rest period shortens the recovery your body needs and dulls the contrast effect.

After Your Last Round

Once you’re done, wash your face and body. The heat opens your pores and loosens trapped dirt, oil, and debris, which is great while you’re sweating. But as everything cools and settles back onto your skin, it can re-clog pores. If you have oily or acne-prone skin, this step is especially important since sweat mixing with your skin’s natural oils is a recipe for breakouts.

After cleansing, your pores are still open and more receptive than usual. This is a good time to apply nutrient-rich moisturizers, serums, or soothing oils with antioxidants. Your skin will absorb them more effectively than it would on a normal day.

Continue drinking water with electrolytes after you leave. You’ve likely sweated out more fluid than you think, and dehydration can creep up hours later as a headache or fatigue.

How Often to Go

Frequency scales with benefits. A large Finnish study found that using a sauna two to three times per week is linked to a 27% lower risk of dying from cardiovascular events compared to once a week. Bumping that up to four to seven sessions per week was associated with a 50% reduction. You don’t need to start at daily use. Two or three times a week is a solid, sustainable habit that delivers meaningful results.

What to Avoid

Alcohol and saunas are a bad combination. Drinking increases the risk of a dangerous drop in blood pressure during a session, and it impairs your ability to recognize warning signs like dizziness or overheating. Save the beer for after you’ve cooled down and rehydrated.

Avoid eating a large meal right before a session. Your body diverts blood flow to your skin to manage heat, which competes with the blood flow your digestive system needs. A light snack is fine, but a full stomach can leave you feeling nauseous. If you’re on medications that affect your heart rate or blood pressure, or if you have a cardiovascular condition, talk to your doctor before starting a sauna routine. The heat places real demands on your cardiovascular system, similar to moderate exercise.