Light Your Way to Better Sleep

If you’ve ever struggled with sleep after a late-night screen binge or felt extra alert during a sunny morning walk, you’ve already experienced how light affects your body. Light is one of the most powerful cues for your circadian rhythm—your body’s internal clock that regulates sleep, energy, and alertness. That’s why Arcashift includes personalized lighting […]

Maximizing light is not the goal for health

Imagine it’s summer, and you live way up north. The sun is up for 22 hours of the day. Sunlight is good for sleep, right? Your sleep must be great. Except, no. It sucks. And the reason it sucks isn’t just because it’s hard to sleep when it’s bright outside (people in northern latitudes know […]

Circadian Amplitude to the Max

Let’s say I want to boost circadian amplitude as much as I can. What light/dark schedule should I put myself on?  This is a very tough question to answer experimentally, given how many possible light/dark schedules there are (infinite) and how expensive experiments like this can be (near infinite). But mathematical modeling can give us […]