In the pain relief session an infrared blend provides natural pain relief by reducing inflammation and swelling while near infrared LED's penetrate the tissue to promote cellular repair at a medium, constant intensity level. Mid infrared light can help to expand blood vessels and increase circulation allowing more oxygen to reach injured areas of the body resulting in reduced pain and a faster heating process. A NASA study using near infrared heat, also determined that LED technology allows for deep penetration of tissue and increased cell growth from the inside reducing inflammation.