Say cheese! But if you’re lactose intolerant maybe don’t eat it? Cuz any kind of milk based food will probably give you a tummy-ache! But why? We asked pediatrician Dr. Anjuli Gans why some people are lactose intolerant… and she helped us understand what it is and why it happens.
Got an udderly awesome question? Send it to us at BrainsOn.org/contact, and we’ll milk it for some answers!

We’re back! Brains On Universe has a new headquarters
07:30

A big update about Moment of Um and the Brains On Universe
02:56

How do braces work?
06:19