Light is the most powerful signal your body clock listens to. Get the right light at the right time and sleep, mood and jet lag get easier.
Try Jet Antilag ✈️Why the glasses?Besides the cells that build the picture you see, your eyes contain special light sensors (intrinsically photosensitive retinal ganglion cells) packed with a pigment calledmelanopsin. They’re most sensitive to blue-ish light around 480 nm, and they don’t help you see. They report “how bright and how blue is it out there?” to your brain’s master clock.
Bright light after you wake tells your clock “day has started”, which helps you feel alert now and sleepy at a sensible time later.
Bright, blue-rich light in the evening looks like daytime to your clock. It can suppress melatonin and push your whole schedule later.
Amber / blue-blocking lenses cut the part of the spectrum your clock is most sensitive to. Wear them when you want to tell your body it’s evening, and take them off when you want sunlight.
Honest note: lab evidence for blocking blue light at night is promising but mixed, and it is strongest for evening use, shift work and jet lag. Glasses are one tool; the big wins are daylight, darkness at night and consistent timing.
Like a turbo’s antilag keeps the boost spooled, Jet Antilag keeps your body clock spooled for your new timezone. Tell it where you’re coming from and going to, plus your usual sleep, and it shows when to wear the glasses and avoid light and when toget bright light in your eyes. It’s the part that isn’t intuitive. The wrong light at the wrong time can push your clock the wrong way.
I’m learning about light and biology as I go and writing it up here, in plain language.