Saunas have been scientifically proven to boost and strengthen your immune system.

A study that was done in 2013 showed an increase in the white blood cell count, which helps your body to fight off infections and diseases.

Gary Brecka says, "The passive sweating process is one of the most efficient ways to get bacteria, viruses and all sorts of other things that we’re trying to detoxify from our body, out of our body."

The heat from a sauna causes us to sweat, and this process helps the body eliminate waste, essentially expelling toxins through perspiration. As Gary Brecka explains, “The body has two types of sweating. Passive sweating, which eliminates waste without the goal of lowering body temperature, and active sweating, which helps cool the body down.”

But what exactly are these toxins? A 2012 study found that using a sauna led participants to sweat out heavy metals like arsenic, cadmium, lead, and mercury, which can enter the body through food, skin contact, or inhalation. Saunas also aid in removing other toxins such as harmful chemicals, pesticides, mycotoxins, and BPA, as well as toxins from drugs and alcohol.

Regularly using a sauna has been shown to improve the quality of sleep.

The heat from the sauna can help to relieve stress, increase relaxation, and recover from aches and pains leading to a better nights sleep.

A study of sauna use has been proven to lower inflammation which can lead to a decreased risk of acute and chronic disease conditions.

Saunas have been shown to increase circulation with oxygen-rich blood flow helping to reduce inflammation and swelling to alleviate chronic pain.

The relaxation and endorphin release associated with sauna use as well as lowering cortisol levels, the hormone responsible for feelings of stress and anxiety, can reduce stress.

Studies have shown that sauna use can improve cardiovascular function, and as a result lower the risk of heart disease.

A study has shown that people using a sauna 4 times per week compared to only 1 time per week may decrease the risk of cardiac death by 63%. They also may see a decrease risk of death from cardiovascular disease by 50%, and a 40% decreased risk in all-cause mortality.