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 […]
Daylight Saving Time: Navigating Sleep Disruptions
The end of Daylight Saving Time (DST) is the good one of the two time changes, since we gain the opportunity for an extra hour of sleep instead of losing one. But before you set your clocks back and enjoy that extra rest, it’s important to understand how sudden changes can disrupt your daily routine. […]
Circadian Rhythms Have an Understandability Problem
“If you want to become an earlier chronotype, get more zeitgeber during your phase advance region and less zeitgeber during your phase delay region.” My head is in my hands. At parties, if no one stops me, I will often rant about math’s UI/UX problem. Listen, I say. We just casually drop that sin-1(x) is […]
Nap Planner Science Snapshot
The nap planner scores naps based on the following: with more dimensions to come. How do we estimate these things? We run hundreds of simulations of how your body’s clock is shaped by your activity patterns in the normal course of running Arcashift. The nap scores are natural extensions of these simulations, taking on the […]
Snooze Smart with Arcashift’s Nap Planner
If you’ve ever thought a nap might be the key to boosting your energy, we’ve got great news! Introducing Arcashift’s new Nap Planner—an innovative, circadian-driven tool that understands your body’s internal clock. How does it work? The Nap Planner takes the guesswork out of napping by analyzing your body’s internal clock and recommending the best […]
What a Sleep and Circadian Digital Twin Can Do For You
Like anyone talking about anything, I tune my content to the audience. When I talk about our tech to travelers, I tell them our apps can help them get over jet lag faster. When I talk about our tech to shift workers, I highlight how we can help them sleep more and get them to […]
Arcashift’s New Onboarding: Personalized Sleep Insights & Circadian Alignment
Ready for another exciting Arcashift update? Our new onboarding experience gives you instant access to the information you care about, all without needing to create an account. That’s right – no sign-ups or passwords, just an easy and seamless way to explore personalized insights. Within minutes of launching the app, you will uncover your unique […]
Nighttime Light: The Silent Sleep Disruptor
Remember awhile back when we published ‘Light at Night is Bad, People‘? Well, consider this the reunion tour—today, we’re diving back in to explore why nighttime light is the ultimate sleep stealer. Picture this: it’s bedtime, and you’re ready to fall fast asleep. Then, bam! You remember a work email and crack the laptop open. […]
Tips for Battling Shift Work Disorder
Are you navigating long hours outside the traditional 9-5 schedule? Whether you’re a nurse, firefighter, or factory worker, you’re probably familiar with the challenges of irregular shifts. But have you heard of Shift Work Disorder (SWD)? Shift Work Disorder is, well, exactly what it sounds like. It’s a condition that disrupts your body’s natural sleep-wake […]
Step Up Your Game with Arcashift’s Activity Chart
You’ve probably heard that activity is pretty good for your health. But when should you be active if you’re trying to shift your clock earlier or later? Arcashift’s Activity Chart has got you covered. By now, we know you’re familiar with circadian rhythms, which are those natural 24-hour cycles that regulate your body functions (including […]










