Infrared saunas use a combination of heat and light to increase core body temperature. The infrared light waves create heat within the body, producing sweat and a higher body temperature without heating the air around you.
When your core body temperature rises, it stimulates your lymphatic system, immune system and your cardiovascular system. Your body’s response to that is to sweat profusely.
In addition to the infrared heat triggering a pronounced sweat, the water in your body resonates with the infrared heat which also helps with the detoxification process.