DIFFERENT HEAT ABSORPTION AND SWEATING LEVELS
Whether it's how hot we feel, or how much we sweat, Everyone has different heat absorption and
sweating levels:

• The more a body undergoes heat, the better it gets at adjusting to the heat. This is "acclimatization." If you are not used to heat exposure, your body may take a week or two to adjust, in order to experience heavy sweating.
• Fitter people sweat sooner and sweat more.
• Men’s sweat glands are more active than women’s.
• Parts of the body differ: feet have the most sweat glands, the back has the least.

DIFFERENT ENVIRONMENTS
• Humidity. When it is high, sweat stays in beads on the skin; in low humidity it evaporates before you see it.
• Temperature. The air in a cool or cold room draws heat away from the sauna.
• Altitude. Customers have told us that at higher altitudes there is a significant difference in the time it takes to reach optimum heat / sweating conditions. At high altitudes, humidity is often dramatically lowered. So customers living at high levels have told us that the warming-up period may be significantly longer until satisfying "hot sweating" conditions are met.

RAISING THE BODY'S CORE TEMPERATURE
The normal core body temperature is 36°C-38°C. Excess heat comes from exercise or from a hot environment. The body has two ways to get rid of excess heat:
• The heart rate steps up to move blood - and heat - from internal organs to the skin.
• Sweating occurs so that sweat can evaporate and cool the body.
To promote sweating, a sauna is really inducing a measured amount of heat stress in the body. Actually, it is at the lower settings on the infrared sauna that the heating levels are enough to make most people start sweating. But we all respond differently to Infrared Heat.