Daily Habits
How Sunlight Shapes Your Daily Rhythm
Sunlight does more than brighten your day - it helps set your body’s internal clock. Light picked up by special cells in your eyes sends signals to the brain that shape when you feel awake, when you get sleepy, and how hormones like melatonin rise and fall. This article explains why morning light can boost alertness and shift your sleep earlier, while evening light (especially from bright indoor bulbs and screens) can keep you wired and delay bedtime. You’ll also learn common habits that throw off circadian rhythm, simple ways to use light exposure on purpose - without overcomplicating your routine - and clear guidance on when ongoing sleep troubles are worth discussing with a healthcare professional.