Sunlight exposure, potentially captured by infrared and ultraviolet light therapies, may be addressing a deficit caused by reduced time spent outdoors under artificial lights and in front of screens.

“one has to wonder whether or not these light therapies the fact that infrared works and maybe ultraviolet works is are really just capturing some of what sunlight is naturally doing when as you mentioned before a child or perhaps an adult also spends a certain number of hours outdoors”