What is Per2?

Per2 is like a tiny clock inside your body that helps you know when it’s time to sleep and when it’s time to wake up.

Imagine you have a little robot friend named Per2 living inside you. This robot keeps track of the time, just like how your phone or watch shows the hours. When it gets dark outside, Per2 says, “Time for sleep!” and tells your brain to slow down. When it gets light outside, Per2 says, “Time to wake up!” and tells your brain to speed things up.

Per2 is part of something called the body’s clock, which works like a team of tiny robots all over your body. These robots help you feel sleepy at night and ready for the day during the morning. If Per2 gets confused, maybe because you stay up too late playing video games or wake up too early on school days, your body might not know when to sleep or wake up, making it harder to feel rested.

So Per2 is like a helpful robot that helps you know when it’s time for bed and when it's time to get up, just like how a timer helps you know when your cookies are done baking!