Light influences the body via the Suprachiasmatic nucleus [0] a tiny center that sits between your eyes. This center basically regulates the circadian circle a

Light influences the body via the Suprachiasmatic nucleus [0] a tiny center that sits between your eyes. This center basically regulates the circadian circle and plays a big role in the transformation of serotonine to melatonine, which makes you go from stress to sleepy. Artificial light interferes with that. I think it would be a kind of holy grail for psychopharmacology if you could somehow control this center via light impulses (or implanted LEDS :) ). You could calm anxious patients for example. [0] https://en.wikipedia.org/wiki/Suprachiasmatic_nucleus https://en.wikipedia.org/wiki/Suprachiasmatic_nucleus