15/03/2026
Viewing morning sunlight signals your brain (via special cells in your eyes) that the day has begun. This boosts early-day cortisol in a healthy way, regulates your internal clock, and helps melatonin (sleep hormone) drop at night for better, more consistent sleep. Studies show even cloudy-day exposure works well since outdoor light is 10,000β100,000 lux vs. indoor lighting's 100β500 lux.