As a health care practitioner, I can attest to the benefits that patients report after LLEL treatment.  Many patients have reported that knee, shoulder and back pain decreased after just two or three  (30-minute) sessions.  This treatment is known to improve circulation by increasing the amount of nitric oxide within a blood vessel.  More specifically, this has been previously reported to help decrease symptoms of chemotherapy-induced peripheral neuropathy (numbness in hands and feet).