Spoiler alert: the teen brain isn't like the adult brain. Sure, it's pink and squishy, and it bears a passing resemblance to a giant wad of chewed-up bubblegum. In those ways it's pretty similar. But as teens navigate their daily lives, their brains light up differently from the brains of adults. In part, that's because their brains aren't done developing. Of course, evidence suggests that human brains are never totally done growing and changing, and that "brain development in various forms goes on throughout the lifespan". Turns out you can teach an old dog new tricks after all.