Infrared Light Therapy is different than transcranial LED therapy. Infrared Light Therapy in commonly used in chiro and PT offices. Transcranial LED Therapy uses Red and Near Infrared (NIR) wavelengths to effect the cells. The studies I found do show transcranial LED therapy as promising. It looks like you need lots of treatments to see a benefit.

In both subjects of the first study, the subject regressed if they discontinued the LED treatment. It appears this needs to be a ongoing and lifelong treatment.

I have not been able to find any LED units designed for transcranial therapy. The common LED therapy units I found cost $900 and are not directed at transcranial therapy. Do you know of any sources for the LED units for transcranial therapy ? The other LED units use infrared wave length and have RED and NIR LEDs available as accessories.

That grant to the Harvard Football Players Health Study is being funded over ten years by the NFL Players Association, not the NFL. Unfortunately, the NFL has been very resistant to fund any worthwhile studies so the players are doing it. This has been a hot topic by the NLFPA for a decade or more despite the NFL's reluctance to look into the matter.

It sounds like one needs to find a doctor who understand it to order the system.