Guides – tagged "Light and Health" – Sunday Light

A woman looking up into the light, her face lit softly from above

October 25, 2026

GuidesLight and health

Is there a SAD light that lights the whole room?

Yes. What counts for SAD is how much light reaches your eyes and for how long. How the light box dose works, what a whole-room...

Two people at a table under Sunday Light in a white studio, one looking up at the light

October 25, 2026

GuidesLight and health

Bright light for afternoon focus when you work from home

The afternoon dip is biological, and in controlled studies bright light lifts it. What the studies used, how to time it around your sleep, and...