Why Do We Get Hiccups? | Body Science for Kids?

Hiccups happen when your diaphragm suddenly jerks up and you quickly breathe in.

Imagine you're drinking a super cold soda really fast, whoosh!, and then you laugh at a joke right after. That's like giving your diaphragm a surprise party it wasn’t ready for. The diaphragm is the muscle that helps you breathe by moving up and down inside your body, like a bellows in a forge.

Your diaphragm goes up really fast when it gets surprised, like when you trip on the stairs and your stomach lurches. At the same time, your voice box makes a quick “hic!” sound because your breath comes in suddenly. It’s kind of like when you startle and say “whoa!”, only smaller and quicker.

Sometimes hiccups happen for no reason at all, just like how your toes might wiggle when you’re sleeping without knowing why. But if they keep coming back, it’s because your diaphragm is still catching its breath from that surprise party!