Why Am I So Tired After Infrared Sauna?

Are you feeling exhausted and drained after using an infrared sauna? You’re not alone.

Many people report feeling tired after using an infrared sauna, and there are several reasons why this could be happening.

In this article, we will explore the potential causes of post-infrared sauna fatigue and provide tips on how to combat it.

What is an infrared sauna?

Before we delve into the reasons why you might feel tired after using an infrared sauna, let’s first understand what an infrared sauna is.

An infrared sauna is a type of sauna that uses infrared heaters to emit radiant heat that is absorbed by the body.

Unlike traditional saunas that heat the air around you, infrared saunas directly heat your body, resulting in a deeper sweat and more therapeutic benefits.

Reasons why you might feel tired after using an infrared sauna


One of the most common reasons why people feel tired after using an infrared sauna is dehydration.

Infrared saunas can cause you to sweat profusely, and if you’re not properly hydrated, you may experience fatigue and dizziness.

It’s essential to drink plenty of water before, during, and after your sauna session to prevent dehydration.


Another reason why you might feel tired after using an infrared sauna is overexertion.

While infrared saunas are generally safe, they can cause your body to work harder than usual to regulate its temperature.

If you spend too much time in the sauna or have a pre-existing medical condition, such as cardiovascular disease, this overexertion can lead to fatigue.

Toxin release

Infrared saunas are known to help release toxins from the body through sweating.

However, when these toxins are released, they can make you feel tired and sluggish.

This is because your body is working hard to eliminate these toxins, which can be a tiring process.

Blood sugar levels

Infrared saunas can also lower blood sugar levels, which can cause fatigue, especially if you have a pre-existing medical condition like diabetes.

It’s essential to monitor your blood sugar levels before and after using an infrared sauna to prevent this from happening.

Hormonal changes

Using an infrared sauna can also cause hormonal changes in the body.

For example, it can increase the production of endorphins, which can make you feel relaxed and tired.

Additionally, it can lower the production of cortisol, which is a hormone that regulates your energy levels. This hormonal imbalance can lead to fatigue.

How to combat post-infrared sauna fatigue

If you’re feeling tired after using an infrared sauna, don’t worry.

There are several things you can do to combat this fatigue and feel energized again.


As mentioned earlier, dehydration can cause fatigue.

So, make sure to drink plenty of water before, during, and after your sauna session.


If you’re feeling tired, it’s essential to rest.

Take a nap or relax for a few hours after your sauna session to give your body time to recover.


While it may seem counterintuitive, exercising after your sauna session can help combat fatigue.

Exercise can increase blood flow and energy levels, helping you feel more energized.

Eat a healthy snack

Eating a healthy snack after your sauna session can help boost your energy levels.

Try eating a snack that contains protein and complex carbohydrates, like a handful of nuts or a piece of fruit.

Limit your sauna time

To prevent overexertion and fatigue, it’s important to limit your sauna time.

Start with shorter sessions and gradually increase the length of your sessions over time.


In summary, feeling tired after using an infrared sauna is not unusual, and there are several potential causes of post-sauna fatigue.

However, by taking simple steps to combat this fatigue, you can continue to enjoy the many benefits of infrared sauna therapy.

More From the Sauna Blog: 

What should you not do after an infrared sauna? 
Can you drink water in infrared sauna? 
Is infrared sauna anti inflammatory? 

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