They buried the lede: “Once we can do that, we may be able to treat some ADHD by non-pharmacological methods, such as changing light...” It's not sleep, per s

They buried the lede: “Once we can do that, we may be able to treat some ADHD by non-pharmacological methods, such as changing light...” It's not sleep, per se, that matters: it's (real) darkness, consistently obtained. Sleeping extra hours every day harms health, it doesn't help it. We've known about intrinsically photosensitive retinal ganglion cells (ipRGCs), for many years now. But somehow people keep thinking "more sleep" when the evidence says "more darkness."