One of the main benefits of FIR therapy is pain relief. A study published in the Journal of Clinical Rheumatology in 2002 investigated the effects of FIR therapy on patients with rheumatoid arthritis (RA). The study found that FIR therapy reduced pain and stiffness in the joints of RA patients and improved their overall quality of life. Another study published in the Clinical Journal of Pain in 2006 examined the effects of FIR therapy on patients with chronic low back pain. The study found that FIR therapy significantly reduced pain and improved functional capacity in the patients.

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Improved circulation is another benefit of FIR therapy. A study published in the Journal of the Medical Association of Thailand in 2010 investigated the effects of FIR therapy on patients with type 2 diabetes. The study found that FIR therapy improved blood flow and circulation in the patients, which is important for diabetes management. Another study published in the International Journal of Cardiology in 2005 examined the effects of FIR therapy on patients with heart failure. The study found that FIR therapy improved cardiac function and increased blood flow in the patients.

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Finally, FIR therapy has been shown to reduce inflammation. A study published in the Journal of Alternative and Complementary Medicine in 2009 investigated the effects of FIR therapy on patients with chronic pain. The study found that FIR therapy reduced inflammation in the patients, which is important for the management of chronic pain. Another study published in the Journal of Cosmetic and Laser Therapy in 2013 examined the effects of FIR therapy on patients with cellulite. The study found that FIR therapy reduced inflammation and improved elasticity.