How does exposing yourself to light at the right time work?

Exposing yourself to light at the right time helps your body know when it’s time to be awake and when it's time to sleep.

Think of your body like a clock that needs help from the sun. When you're outside in the daylight, especially in the morning or early afternoon, it tells your brain, “It’s time to wake up!” It does this by sending signals through special parts of your eyes called photoreceptors, they’re like little helpers that notice light.

If you stay in the dark too long at night, especially before bed, it tells your brain, “Time for sleep now!” This helps you feel tired and ready to rest.

It’s kind of like when you're playing with a toy that lights up, if the light is on, you know it's time to play; if it’s off, it’s time to go to bed. Your body uses light as its own special toy to help it tell time!

If you get the right amount of light at the right times, your body stays in rhythm, and you feel more awake during the day and sleepy at night, just like a well-timed game of hide-and-seek!