Those of us who deal with even a moderate level of anxiety know how exhausting it can be — it would be nice, for example, to experience just once what it might be like to leave the house without worrying that you’ve accidentally left the oven on. But there is a silver lining to being a natural worrier: Some scientists argue that anxiety may be a signal of higher intelligence.

Watch the latest Science of Us animation to find out more, and you can also check out older episodes from the series — like last week’s offering, in which we discover why you don’t need to worry about whether asking questions is making you sound dumb. While you’re at it, you can also stop worrying about how much you worry.