There is light therapy for people who get depressed in the winter. If I don’t misunderstand they are nowadays using “full spectrum” (=white) light, not blue light. That might have something to do with what you are talking about, and in that case it is evidence that it is not just the proportion of blue light that matters.
There is light therapy for people who get depressed in the winter. If I don’t misunderstand they are nowadays using “full spectrum” (=white) light, not blue light. That might have something to do with what you are talking about, and in that case it is evidence that it is not just the proportion of blue light that matters.