Why do I feel weird after the sauna?

Author: Pinkie Hermann  |  Last update: Friday, October 3, 2025

You lose water through sweat, toxins leave your body and your heart rate can rise quite a bit too. All these factors can leave you feeling tired after a session.

What are the symptoms of detoxing from the sauna?

A review of infrared sauna detox therapy found some side effects. Although mild, the most common ones include heat discomfort, dehydration, low blood pressure, lightheadedness, and nausea. I suggest starting with 10-15 minute sessions at 100-130 F.

What should you not do after a sauna?

After the end of the sauna session, you should not clean yourself with shower gel or soap, just apply some lotion.

Why do I feel sluggish after a sauna?

Saunas can make you feel tired due to the high heat and humidity, which can cause dehydration, lower blood pressure, and increase fatigue. Additionally, the relaxation response induced by saunas can also lead to feelings of drowsiness.

What toxins are released after sauna?

Though in many cases of needed detoxification the liver and kidneys will do a better job eliminating toxins than sweat will, heavy metals such as arsenic, lead, mercury, and cadmium were all found to be released in higher levels of post-sauna sweat than in urine, making sauna therapy more effective than other types of ...

Why Everyone Should Use a Sauna: Top Health Benefits You Can’t Ignore!

Why do I feel funny after sauna?

If you've ever felt lightheaded or unsteady after stepping out of a sauna, you're not alone. This common experience can be caused by factors such as dehydration, low blood pressure, or even heat exhaustion.

What is the negative effect of sauna?

Although sauna bathing does not cause drying of the skin-and may even benefit patients with psoriasis-sweating may increase itching in patients with atopic dermatitis. Contraindications to sauna bathing include unstable angina pectoris, recent myocardial infarction, and severe aortic stenosis.

Why do I feel unwell after a sauna?

Dehydration can result from fluid loss while sweating. People with certain conditions, such as kidney disease, may be at a higher risk of dehydration. The increased temperatures can also lead to dizziness and nausea in some people.

Can sauna drain your energy?

You might feel quite exhausted afterward, depending on how much you sweat during your session. You Dehydrate Quickly. Because you are sweating so much during an infrared sauna session, it's essential to ensure you drink plenty of water before and after your sauna time.

Why does my heart feel weird after the sauna?

Saunas can increase your heart rate, which could cause your aortic valve to become blocked. General chest pain (angina pectoris). If you've been having chest pain, stay out of the sauna until your doctor has examined you.

Why do I feel dizzy after sauna and cold plunge?

The sauna causes blood vessels to dilate, and the cold plunge causes them to constrict rapidly. This sudden redistribution of blood flow in your body can potentially make you feel dizzy.

Why should you not shower after a sauna?

Cooling off after the sauna is important because you can catch a cold if you sweat too much. Sauna-goers should leave enough time to cool down before warming up again. If you can, don't have a shower straight after the sauna. It's better for the body if you cool off in the fresh air first.

How should I feel after sauna?

I Felt More Calm Than Usual

On multiple occasions during my sauna use, I was able to sit in silence and just focus on my breathing. There's a reason why people feel relaxed and calm after using a sauna, Mikhael said. It's because as the body and muscles loosen up, heart rate and blood pressure go down.

Does sauna clean out your system?

While you cannot physically flush out toxins through your sweat, the mechanisms surrounding the heat from saunas and sweating can help clear out drugs and alcohol from your system more quickly and easily. The high heat experienced in saunas will cause the blood vessels to dilate and increase blood flow.

Why do I feel chills after a sauna?

Chills are a common symptom for those suffering from the Herxheimer reaction. The increased flow of blood caused by the infrared sauna will provide fresh oxygen to blood cells in the head and neck.

Why do I feel so bad after a sauna?

While saunas have many potential health benefits, some people may experience feelings of fatigue or exhaustion after a sauna session. This can be caused by a variety of factors, including dehydration, changes in blood pressure, and sauna exhaustion. However, there is no evidence to suggest that saunas make you tired.

Does sauna increase anxiety?

When speaking of anxiety and stress levels, regular sauna decreases cortisol levels, the main stress hormone in your body. The excessive sweating induced by the sauna often decreases the level of frustration and enhances relaxation. Sauna also induces better sleep.

Is it good to sauna every day?

To achieve a positive effect, up to three sauna sessions are recommended per week. For healthy people, there is nothing to stop them from even taking a sauna every day. However, it should be noted that if you visit the sauna several times a week, you should reduce the number of sauna sessions per day.

What are the negatives of a sauna?

3 Drawbacks of Using a Sauna After Exercise
  • Amplifies Dehydration. You lose plenty of fluids when you work out — even if you're not dripping in sweat. ...
  • It Can Stress the Heart — Especially for Those With Pre-existing Conditions. ...
  • Lowers Sperm Count (Temporarily)

Why am I so exhausted after a sauna?

An infrared sauna creates a cardiovascular workout on your body and removes heavy metals & toxins. Whilst this is beneficial, it also may make you feel tired as your body adjusts and reacts.

Why do I faint after a sauna?

Heat causes the blood vessels to expand (dilate), so body fluid moves into the legs by gravity, which causes low blood pressure and may result in fainting. Symptoms that could lead to heat syncope (fainting) include: Feeling faint or light-headed.

Why do I feel sick after the sauna?

Be aware of what your body is telling you and how your body is handling excessive detoxification. If you start to feel symptoms such as nausea, fatigue or flu-like symptoms during your sauna session, end your sauna session for the day.

Why do you not wear clothes in a sauna?

CHEMICALS AND DIRT

The primary benefits of a sauna come from exercising your skin by exposing it to heat. Clothing blocks the heat transfer to your skin and holds the sweat against it that's trying to evaporate, negating most of those benefits.

Does sauna burn fat?

Saunas themselves do not directly burn fat. The weight loss observed after a sauna session is primarily due to water loss through sweating, which is temporary and regained upon rehydration. With that being said, there are a few ways that saunas can have indirect benefits that may support weight loss or body mass loss.

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