What is PER3?

PER3 is like your body’s nighttime timer that helps you know when to sleep and wake up.

Imagine you have a clock inside your brain called PER3. It’s like the little hand on a kitchen timer, it counts down, and when it reaches zero, it tells your body: “Time for bed!” When it finishes counting, it starts over again, telling your body: “Time to wake up!”

Think of PER3 as part of your body’s daily rhythm, like a sunrise and sunset cycle. If you have a longer version of PER3, your body might take longer to feel sleepy and longer to wake up, just like how it takes longer for the sun to rise after midnight.

Some people need more time to wind down at night because their PER3 timer runs slower, kind of like a slow-cooker that takes longer to heat up. That’s why they might feel sleepy later and wake up later than others.

So PER3 is just one piece of the puzzle in your body's clock, helping you know when it’s time to rest and when it’s time to play!