Why is the circadian clock important? 2017 Nobel Prize in Physiology or Medicine?

The circadian clock is like your body’s inbuilt timer that helps you know when to be awake and when to sleep.

Imagine you have a little clock inside you, and it works just like the alarm clock on your bedside table. When it's morning, this clock tells your brain it's time to wake up, so you feel alert and ready for the day. When it's night, it tells your body it’s time to rest, making you sleepy and helping you sleep well.

This timer is super important because it keeps your body in sync with the day and night. If your timer gets confused, like when you stay up too late playing video games, you might feel tired during the day or have trouble falling asleep at night.

In 2017, scientists won the Nobel Prize for figuring out how this timer works. They discovered special proteins in our bodies that act like tiny clock hands, ticking away to keep everything running smoothly, just like the hands on your watch!