Some people like the sound of running water because it helps them relax. For others, it creates a strong urge to urinate. This is no coincidence, and it happens more commonly than you think—all thanks to the power of suggestion.

Suggestion is a subtle force that can influence our behavior, how we perceive things, and how we act later. In regards to needing to pee, this SciShow video explains the obvious: running water simply sounds a lot like urination. And over a lifetime of performing the same bathroom ritual—peeing, hearing the sound, flushing the toilet, and (hopefully) washing your hands after—you associate many bathroom sounds with peeing.

And now that you’ve read this, you probably can’t not think about running water and likely want to pee now. You’re welcome.

Why Does Running Water Make You Want to Pee? | SciShow