Does a Sauna Help You Lose Weight, and Is It Good for a Cold?
Does a sauna help you lose weight? Not in the way most people hope. You will see a lower number on the scale after a session, but nearly all of it is water, and it returns once you drink. A sauna can still be a good part of a healthy routine, just not as a fat burner.
The second question that comes up every winter is whether a sauna is good for a cold. The honest answer is that warmth may make you feel more comfortable with a stuffy nose, but a sauna does not cure a cold, and a sick body is often better off resting at home. Here is the plain version of both, with notes on what the steam sauna at Hana Spa can and cannot do.
Does a sauna help you lose weight?
A sauna helps you lose water weight, not body fat. Sweating removes fluid, so you may weigh a pound or two less when you step out, and that returns as soon as you rehydrate.
Fat loss comes from using more energy than you take in, over weeks. Heat on its own does not melt fat, and sweating does not draw fat out of your body. Published research suggests that sitting in a sauna raises your heart rate and uses a little more energy than sitting in a chair, but the amount is small, closer to light activity than to a workout.
| What changes | What it really is | Does it last? |
|---|---|---|
| Scale drops after a session | Sweat, meaning water and a little salt | No, it returns when you drink |
| Slightly higher heart rate | Your body working to cool itself | Only while you are in the heat |
| Looser, calmer feeling | Warm muscles and a quiet room | For a few hours, maybe longer |
If your goal is weight loss, put your energy into food, movement and sleep, then use the sauna as recovery. Chasing the number on the scale after a session can also push you to skip water you need, so drink first and let the number go.
What a sauna can honestly do for you
A sauna can help you relax, loosen tight muscles and wind down before sleep. Those are real comforts, and they support a healthy routine even though they do not burn fat.
Many people use heat after a workout because warm muscles feel less stiff. Our notes on the benefits of a steam sauna go through skin, sinuses and sleep. Others pair heat with a massage, and you can see how that works in hot stone massage benefits for cold months, which describes warm basalt stones working into tight muscle.
Hana Spa has a steam sauna, which is wet heat at a lower temperature than a dry sauna. It is not a weight loss treatment, and we would not sell it as one. It is a quiet place to sweat gently and rest, and you can see how our steam sauna works.
Safety if you are trying to lose weight
Do not use a sauna to cut weight quickly. Heavy sweating without enough water leads to dizziness and headaches, and it can be dangerous. If you have a heart condition, low blood pressure or you are pregnant, ask your doctor before using any hot room.
How long should a session be?
Most people do well with short rounds of about 10 to 15 minutes, with cool breaks between. More heat time does not mean more weight loss, only more risk of feeling unwell.
The best session length depends on the room, your health and how you feel that day. Our guide to how long you should sit in a sauna gives a round by round plan, and it covers beginners and regulars. Listen to your body: dizziness, nausea or a pounding heartbeat all mean it is time to leave.
Is a sauna good for a cold?
A sauna may make a stuffy nose feel better for a short while, but it does not cure a cold or shorten it. If you are actually sick, with a fever, chest symptoms or body aches, you should usually stay home and rest.
Warm, moist air can loosen mucus and ease the feeling of congestion for a few minutes, which is why many people like steam when they feel stuffed up. That comfort is real. It is also temporary, and it is not a treatment.
Why a sick body should skip it
- Fever plus heat raises your body temperature further and can leave you faint.
- Dehydration is easier when you are already losing fluid.
- You may pass your cold to other guests in a shared space.
For the full version, read sauna when sick, which sets out when heat helps and when to stay home. A mild head cold with no fever is a gray area, and your doctor is the right person to ask.
Steam, sauna and which comes first
If you have access to both dry heat and steam, try one first and rest before the other, rather than switching back and forth. Short rounds and a cool break keep you comfortable.
People often ask whether to take the steam before or after a massage, or which room to try first in a spa that offers several. Our piece on sauna or steam room first explains the order and the reasons. At Hana Spa, with a steam sauna on site, the usual advice is to drink water, take short rounds, and rest quietly afterward.
Visit the steam sauna at Hana Spa
If you want a calm hour of warmth and rest, come to Hana Spa at 520 Bergen Blvd, Palisades Park, NJ 07650. We are open every day from 9 AM to 11 PM, and walk ins are welcome. Call 201-242-0444 to hold a time.
See the steam sauna for details, browse the whole services list, or book a time online. Parking is free, Korean and English are spoken, and you are six minutes from Fort Lee and the George Washington Bridge.
Questions readers ask
How much weight can you lose in a sauna?
You may lose a pound or two of water in a session, and you will regain it when you drink. It is not fat loss, and trying to force more is unsafe.
Does sweating more mean burning more fat?
No. Sweat is your body cooling itself. How much you sweat depends on heat, humidity and your own body, not on how much energy you spend.
Should I weigh myself after a sauna?
You can, but the number will be low from water loss. It is better to weigh at the same time of day under normal conditions, and to ignore the post sauna reading.
Can I use the sauna if I have a cough?
A light cough with no fever may be fine for some people, but heat can irritate the airways. When in doubt, rest at home or ask your doctor, and leave shared hot rooms for when you feel well.
What should I drink after a sauna?
Water is the simplest choice. Sip it over the next hour. If you sweated heavily, a snack with a little salt can help as well.