Relation between Far Infrared Radiation and Health

Poison discharge: stimulating capillary vessel, speeding up poison discharge of lymphatic system and the regeneration of collagen protein. 

Eliminates body fatigue, improves sleeping.

Relieves and prevents rheumatoid arthritis.

Activates cells to promote metabolism and strengthens immune system.

Improves skin condition making it smooth and bright.

Enhances detox and prevents fat from depositing in the body.

Quickens up lipolysis.

Speeds up metabolism and enhances nutrition absorption.

Offers physical therapy against myalgia and neurosis by balancing autonomic nervous system.

Improves immunoreaction system.

Eliminates pain and inflammation.


Therapeutic Effects of Far Infrared Heat

The following information has been summarized from Chapter 9 of  Therapeutic Heat and Cold, Fourth Edition, Editors Justus F. Lehmann, M.D., Williams, and Wilkin, or concluded from data gathered there.

Infrared heat increases the extensibility of collagen tissues

Tissues heated to 45°C and then stretched exhibit a nonelastic residual elongation of about 0.5 to 0.9 % that persists after the stretch is removed. This does not occur in these same tissues when stretched at normal tissue temperatures. Therefore 20 stretching sessions can produce a 10% to 18% increase in length of tissues heated and stretched. Stretching of tissue in the presence of heat would be especially valuable in working with ligaments, joint capsules, tendons, fasciae, and synoviurn that have become scarred, thickened, or contracted. Such stretching at 45°C caused much less weakening in stretched tissues for a given elongation than a similar elongation produced at normal tissue temperatures. Experiments cited clearly showed low-force stretching could produce significant residual elongation when heat is applied together with stretching or range-of-motion exercises. This is safer than stretching tissues at normal tissue temperatures.

Far Infrared heat decreases joint stiffness

There was a 20 % decrease in rheumatoid finger joint stiffness at 45°C as compared with 33°C, which correlated perfectly to both subjective and objective observation of stiffness. Speculation has it that any stiffened joint and thickened connective tissues may respond in a similar fashion.

Far Infrared heat relieves muscle spasms

Muscle spasms have long been observed to be reduced through the use of heat, be they secondary to underlying skeletal, joint, or neuropathological conditions. This result is possibly produced by the combined effect of heat on both primary and secondary afferent nerves from spindle cells and from its effects on Golgi tendon organs. The results produced demonstrated their peak effect within the therapeutic temperature range obtainable with radiant heat.

Far Infrared heat treatment leads to pain relief

Pain may be relieved via the reduction of attendant or secondary spasms. Pain is also at times related to ischemia (lack of blood supply) due to tension or spasm that can be improved by the hyperemia that heat induced vasodilatation produces, thus breaking the feedback loop in which the ischemia leads to further spasm and then more pain. Heat has been shown to reduce pain sensation by direct action on both free-nerve endings in tissues and on peripheral nerves. In one dental study, repeated heat applications led finally to abolishment of the whole nerve response responsible for pain arising from dental pulp. Heat may lead to both increased endorphin production and a shutting down of the so called “spinal gate” of Melzack and Wall, each of which can reduce pain. Localized infrared therapy using lamps tuned to the 2 to 25 micron waveband is used for the treatment and relief of pain by over 40 reputable Chinese medical institutes.

Far Infrared heat increases blood flow

Heating one area of the body produces reflex-modulated vasodilators in distant-body areas, even in the absence of a change in core body temperature. Heat one extremity and the contra lateral extremity also dilates; heat a forearm and both lower extremities dilate; heat the front of the trunk and the hand dilates.

Heating muscles produces an increased blood flow level similar to that seen during exercise. Temperature elevation also produces an increased blood flow and dilation directly in capillaries, arterioles, and venules, probably through direct action on their smooth muscles. The release of bradykinin, released as a consequence of sweat-gland activity, also produces increased blood flow and vasodilatation. Whole-body hyperthermia, with a consequent core temperature elevation, further induces vasodilatation via a hypothalamic-induced decrease in sympathetic tone on the arteriovenous anastomoses. Vasodilatation is also produced by axonal reflexes that change vasomotor balance.

Far Infrared heat assists in resolution of inflammatory infiltrates, oedema and exudates

Increased peripheral circulation provides the transport needed to help evacuate oedema, which can help inflammation, decrease pain, and help to speed healing.

Far Infrared heat affects soft tissue injury

Far infrared healing is now becoming a leading edge treatment for soft tissue injuries to promote both relief in chronic or intractable “permanent” cases, and accelerated healing in newer injuries.