The effects of light on the hyperactivity on children, for example, has been known since the 1970s when this documentary was made, titled Exploring the Spectrum by Dr John Nash Ott. The white coat cult chooses to give such kids "ADHD medication" instead.
https://video.nostr.build/1e1edd4c16372a82ee8cf415a4bec39f15277086cccbc9734eb0dd976898f669.mp4