You're talking.

Everything is normal.

Then suddenly…

HIC!

And you're just there thinking, “Okay, who invited this?” 😂

Hiccups happen when your diaphragm suddenly contracts involuntarily. The diaphragm is a large muscle underneath your lungs that plays a major role in breathing.

When it suddenly contracts, you quickly breathe in. Almost immediately afterward, your vocal cords close, creating that familiar “hic” sound.

So basically, a hiccup is your breathing system having a tiny disagreement with itself. 😭

But here's the part most people wonder about:

Why does it happen in the first place?

Sometimes hiccups can happen after eating too quickly, eating too much, drinking fizzy drinks, sudden changes in temperature, or even laughing and getting excited.

And sometimes?

There doesn't seem to be an obvious reason at all.

Scientists aren't completely sure what purpose ordinary hiccups serve. One theory is that they may be a leftover reflex from our evolutionary past.

And yes, babies can hiccup too — even before they're born.

Your body really starts practicing weird things early. 😂

Most short episodes go away on their own. But hiccups that last an unusually long time can sometimes be linked to an underlying medical problem and should be checked by a healthcare professional.

Quick medical fact: A hiccup happens when the diaphragm contracts suddenly and involuntarily, followed by a quick closure of the vocal cords.

So the next time you get the hiccups, just remember:

Your diaphragm has decided to press the “HIC” button for absolutely no reason. 😂

What is one weird body fact you've always wondered about?