Daily Dose

Your Daily Dose of Light, Simplified

Your Daily Dose of Light, Simplified

Three windows a day, one simple habit each. Here's the light framework researchers point to, no supplements, no spreadsheet.

Your Daily Dose of Light, Simplified

Three windows a day, one simple habit each. Here's the light framework researchers point to, no supplements, no spreadsheet.

The Best Time to Exercise, Based on Your Light Exposure

The Best Time to Exercise, Based on Your Light ...

When it comes to exercise performance, timing isn't the whole story. Your body's natural performance window is influenced by your circadian rhythm—and that rhythm is shaped by your light exposure....

The Best Time to Exercise, Based on Your Light ...

When it comes to exercise performance, timing isn't the whole story. Your body's natural performance window is influenced by your circadian rhythm—and that rhythm is shaped by your light exposure....

The Evening Reset: What to Do With Light in the Two Hours Before Bed

The Evening Reset: What to Do With Light in the...

Most people spend real effort optimizing their mornings and none optimizing their evenings — even though the two hours before bed do just as much work on your biology.  

The Evening Reset: What to Do With Light in the...

Most people spend real effort optimizing their mornings and none optimizing their evenings — even though the two hours before bed do just as much work on your biology.  

Jet Lag Isn't About Time Zones. It's About Light Timing.

Jet Lag Isn't About Time Zones. It's About Ligh...

You can't negotiate with a clock in the sky. But you can work with the one inside your body — if you know when to show it light, and when...

Jet Lag Isn't About Time Zones. It's About Ligh...

You can't negotiate with a clock in the sky. But you can work with the one inside your body — if you know when to show it light, and when...

Five Months the Sun Doesn't Show Up

Five Months the Sun Doesn't Show Up

From October to March, the sun disappears for most of the northern hemisphere. Here's how to keep your body's light requirements met — without waiting for spring.

Five Months the Sun Doesn't Show Up

From October to March, the sun disappears for most of the northern hemisphere. Here's how to keep your body's light requirements met — without waiting for spring.

The 10-Minute Morning Light Ritual That Changes Everything

The 10-Minute Morning Light Ritual That Changes...

You don't need a perfect morning routine. You need one thing first: light. Here's exactly how a 10-minute daily light ritual works — and why your body has been waiting...

The 10-Minute Morning Light Ritual That Changes...

You don't need a perfect morning routine. You need one thing first: light. Here's exactly how a 10-minute daily light ritual works — and why your body has been waiting...