Heating the gemstones in the mat naturally releases far infrared rays and negative ions. Adjust the strength of your exposure by adjusting the temperature of your mat. As a general rule of thumb, the higher you set the mat temperature, the shorter your session should be. Begin with 37°C, the average temperature of the human body. Gradually adjust the temperature until you find a comfortable level. The gemstones used are natural heat conductors, they get hot quickly and release their heat into the air. 35 - 40°C: • Suitable for those who are heat sensitive and good for prolonged and overnight usage • Promotes better sleep • Provides mind and muscular relaxation • Promotes cells regeneration 45 - 50°C: • Good for cycles of 2 Hours or more, suitable for after training or strenuous sports activities • Provides temporary relief of joint pain, stiffness and minor muscle pain • Provides muscular relaxation and a temporary increase in blood circulation. Comfortable temperature for the average person. 55 - 60°C: • Good for cycles of 30 - 90 minutes • Provides temporary relief of joint pain, stiffness and minor muscle pain • Provides muscular relaxation and a temporary increase in blood circulation. • Provides profound relaxation and helps to reduce stress, tension and anxiety. 65 - 70°C: • Good for cycles of 30-60 minutes • Provides sauna level cleansing and detoxification of cellular waste with the effect of far infrared • Improves blood circulation and speeds up body's own natural repair mechanisms due to far infrared heat