Have you ever spent a day outside at the beach, hiking, working in the yard and come home feeling great? Not superman, just... better? More relaxed, sleeping deeper that night, joints a little less stiff the next morning? That wasn't just the fresh air.

Every year there's a huge group of people who learn about the importance of sunlight... often because of a painful winter. It's a THOUSAND times brighter outdoors than indoors during the day. Our eyes handle that like it's nothing, so the problem is invisible.

the moat is how much energy you have

Treat your newborn’s environment as a light/dark circadian aligned curriculum from day one with bright light outside and stimulation during the day + darkness and calm at night Even the neonatal intensive care unit makes this case in its purest form When preterm infants are moved from constant bright light onto a day/night lighting cycle, they gain weight faster and go home sooner And that result holds true with the shitty isolated blue and green biased, high flicker rate lighting they have in hospitals In the RCT, they found that infants on that light/dark cycle tolerated feeds better, drank more milk, and cut their hospital stay by roughly two weeks compared with those under continuous lighting Even the most fragile human beings develop better when their environment tells better circadian time

Were entering winter here in chicago Its 5-6 months of 24/7 depression

WAIT, YOU’RE TELLING ME THAT BEING ABLE TO HEAR ELECTRONICS TURN ON BECAUSE OF A CHANGE IN FREQUENCY CAN BE A NEURODIVERGENT THING??? BRO I THOUGHT EVERYONE COULD HEAR THAT.

sunlight is crazy you get 30 minutes of it every morning and your day is 10x better and higher energy.

A wavelength of light mostly missing from indoor lighting completely prevented experimental myopia. Researchers put a very strong prescription lens in front of the eyes of young tree shrews to make their eyes grow longer than normal. Under standard warm-white LEDs, the eyes became severely nearsighted (up to −11.6 D). Adding indigo wavelenghts of light (419-446 nm) prevented the elongation and the eyes stayed around 0.4 D. Sunlight contains more indigo light than indoor LEDs, which might be one of the reasons why spending time outdoors is protective against myopia. DOI: 10.1016/j.xcrm.2026.102999

We published a paper reconceptualizing ADHD as a circadian rhythm disorder.

00:00 Introduction and guest introduction 02:03 Meet Matt, CEO of Chroma and his background 04:04 Why modern LED lighting is mismatched with biology 05:02 The spectral shape of LED lights and health impacts 06:16 Nuance around blue light and circadian signaling 07:04 Shifting the spectrum for biological signaling 08:02 The importance of light intensity and spectrum 09:32 Flicker in LED lights and its effects 11:41 Detecting flicker and its health implications 14:03 The new light product: the bulb and its features 19:21 Designing optimal indoor light environments 23:53 The role of natural light and architecture 26:16 Practical tips for healthy lighting at home 28:51 Living in harmony with natural light and technology

Hypersonic heat 🔥 Sandia’s Thermal Test Complex features a 12-panel radiant heat array that mimics heat loads relevant to hypersonic flight. The array uses 480 custom halogen lamps mounted to water-cooled reflectors to create the heat. ➡️ bit.ly/4h65qWD

blackout curtains save lives.