Regular sauna use helps reduce cortisol levels, which helps to relieve stress and anxiety.
When you sweat excessively, your frustration level lowers drastically, and you become more mentally relaxed.
Saunas also improve your stress resistance, meaning the more often you use the sauna, the less likely you are to feel stressed.
According to PsychReg, "Regular sauna sessions also help increase relaxation and improve overall mental health by triggering the release of hormones that make you feel happier and more content."
These hormones cause a euphoric feeling to overcome your mind, and it tends to last for a while after the session ends, meaning you can go throughout the rest of your day with an easy mind.