The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
So these light sensors in our retina, they actually are slightly different because they need a good dose of blue light. [...] So that's the way this blue light sensor in our retina connects to our brain to reset our clock or to tell when melatonin should rise or fall.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
So as a result, our nature has...we have evolved to have this light sensor, this specialized type of light sensors. These are called melanopsin or blue light sensing light sensors that are present in our retina. These are not necessarily for seeing the outside world, but this light sensor senses blue light. And why blue light? Because the sunlight is the best source of blue light. When we say blue, it's around 450 nanometer to 500 nanometer, that range.