Regardless of how a sauna is heated, or the humidity level, the effects on the body are similar.

When you sit in a sauna, your heart rate increases and blood vessels widen. This increases circulation, in a similar way to low to moderate exercise depending on the duration of sauna use.

Heart rate may increase to 100-150 beats a minute while using a sauna. This may bring some health benefits.

Easing pain

Increased circulation may help reduce muscle soreness, improve joint movement, and ease arthritis pain.

Reducing stress levels

As the heat in a sauna improves circulation, it may also promote relaxation. This can improve feelings of well-being.

Improving cardiovascular health

The reduction in stress levels when using a sauna may be linked to a lower risk of cardiovascular events.

There has been a study conducted in Finland which followed 2,315 men aged 42 to 60 over the course of 20 years. Findings suggested that people who use a sauna may have a lower risk of dying from cardiovascular disease.

Participants who used the sauna two to three times a week were 22 percent less likely to experience sudden cardiac death than those who only used it once a week. Those who used a sauna four to seven times a week were 63 percent less likely to experience sudden cardiac death and 50 percent less likely to die from cardiovascular disease than those who only used a sauna once a week.

More research is needed to find out if there is a definite link between sauna use and a decrease in deaths from heart disease.

Sauna use may also be associated with lower blood pressure and enhanced heart function.

While studies may be promising, sauna use should not replace an exercise program to keep the heart healthy. There is more evidence to support the benefits of regular exercise.

Skin problems

A dry sauna dries the skin during use. Some people with psoriasis may find that their symptoms reduce while using a sauna, but those with atopic dermatitis may find that it worsens.

Asthma

People with asthma may find relief from some symptoms as a result of using a sauna. A sauna may help open airways, loosen phlegm, and reduce stress.

Lower risk of Alzheimer’s?

In 2016, the same researchers from Finland published findings of a 20-year study that also linked sauna use with a lower risk of dementia and Alzheimer’s disease. The study involved 2,315 healthy men aged from 42 to 60 years.

Those who used a sauna 2 to 3 times per week were 22 percent less likely to get dementia and 20 percent less likely to get Alzheimer’s than than those who did not use a sauna. Those who used a sauna four to seven times a week were 66 percent less likely to get dementia and 65 percent less likely to get Alzheimer’s than those who used a sauna once a week.

It is certainly an interesting finding however more research is needed to to confirm these findings.

[Medical News Today]