Light, Sun & Circadian Health

Sunlight, red light, blue light, sleep and circadian rhythm: the light environment as a health input.

Family Health

Anjan Katta: The Hard Road to Building Daylight, a Screen Made for Healthier Tech Habits

Anjan Katta spent years building Daylight, a tablet designed without the usual blue-light screen. He talks openly about rejection, depression, getting help and learning to trust himself. · Nov 4, 2026