Infrared is the light energy we get from the sun that makes us feel warm. The human body both sends and receives infrared. The body emits infrared wavelengths between 3 and 50 microns with the greatest output around 9.4 microns (1 micron = 1 millionth of a meter). Within the infrared spectrum, in the 6-14 micron range, are rays known as the “Vital Rays.” These rays have been shown to be most beneficial to the body.
The infrared provides a different kind of heat to the body. Studies have shown that when the body temperature is raised by submersing in hot water for 30 minutes, the body temperature will begin to decline within 10 minutes after leaving the water. With the body heated with the infrared heat for 30 minutes, the heat will stay in the body for more than four hours.
Infrared penetrates the body like a fine massage and activates the cellular mitochondria. This light energy is very gentle and will activate mitochondria and support blood circulation. Heat from a hot tub does not work in this fashion.
Infrared rays help to optimize the health of the body in a number of ways. Scientists propose that among the energy spectrum coming from the sun, infrared ray waves are by far the safest and most beneficial electromagnetic energy available for the human body.