Circadian science

Welp, here we are yet again. We are once more setting our clocks forward one hour to have more evening light. Why? That’s a good question. The history of Daylight Saving Time (DST) is complex and goes back to 1918 (in the United States). But lately more and more people are asking if it’s even …

The Dark Side of Daylight Saving Time Read More »

Our apps tell you when to avoid light because light exposure is the number one input to your body’s circadian clock (which regulates sleep, metabolism, immune response, DNA repair, physical performance and more). Light at some times speeds up your clock and helps you fall asleep faster, while light at other times can slow down …

The health benefits of darkness Read More »

Don’t use your phone before bed! Turn off overhead lights in the evening! Block blue light as you wind down! There are tons of recommendations out there for helping you get to sleep at night that deal with light and technology, and—spoiler alert—I think they’re right on the money. But missing from the standard advice …

What really helps you go to sleep Read More »

Imagine you’re on a boat. This boat has a sail, which you can put up or pull down. You’re on the ocean, and you’re trying to get to the sweet, sweet island of sleep. You can control the boat’s sail as much as you want. The only problem is: you can’t control the wind.  But …

How to avoid bright light and why we recommend it Read More »