Why Do We Sneeze When We Are Awake?

We sneeze when we are awake because something tickles our nose and tells it to send out a big burst of air.

Imagine your nose is like a tiny detective who’s always on the lookout for germs or dust. When you’re awake, this detective is very busy, it's checking everything that comes in through your nose, like the air you breathe, or maybe even something you touched and then brought to your face.

Sometimes, there are too many germs or dust particles all at once, and the detective gets so excited that it yells out a big sneeze! This sneeze is like a superpower, it helps push those unwanted things out of your nose really fast, kind of like how you might blow away leaves from your driveway with a strong breath.

If you're asleep, the detective takes a break and doesn’t notice all those germs until you wake up. That’s why sometimes you sneeze when you’re awake, your detective is on duty!