The largest source of LED light therapy research is NASA. Here is a nice synopsis of NASA light therapy research on topics ranging from enhanced athletic recovery to increased HgH production, the speeding up healing in ulcers and maximizing weight loss. NASA-research article
NASA Light Therapy Research
Athletic Performance & Recovery, Brain, Mood & Stress, Heart & Circulation, Pain, Skin - Anti-Aging & Acne, Tissue Regeneration & Recovery