There’s an old saying that curiosity killed the cat. That means if you’re too curious, you could stick your nose into trouble that you can’t get yourself out of. Now a study published by researchers from the University of Chicago and the Wisconsin School of Business determined that curiosity doesn’t just kill cats: it can also kill our happiness.

Scientific American said, “The need to know is so strong that people will seek to slake their curiosity even when it is clear the answer will hurt.”

For example, if you ever broke up with someone, then looked up that person’s Facebook page to see what they’re doing now, chances are good seeing pictures of an ex-boyfriend/girlfriend will suddenly cause you emotional distress. Yet it’s tempting to look at such pictures anyway.

The study concluded that our craving for knowledge drives us to risk injury to ourselves in order to satisfy our curiosity. In other words, curiosity can kill a cat and humans as well.

To read more about this study showing that curiosity can bring emotional pain, click here.