The teenage brain can be a very strange place indeed—for the owner and anyone around it. This video peers inside the adolescent skull to explain exactly why that's the case.

We all think of adolescence as being a time of physical development, but in fact many of the hormones responsible for those changes also affect the brain. In fact, they pull it many directions at once—meaning that those mood swings are totally justifiable. Watch this, and you might cut the adolescents in your life just a little bit more slack. [YouTube]