While "Dark Horse" is the latest offering from our goddess Katy Perry, and while it might not be the next single off her album, and while it is chock full of the usual Katy Perry cliches and overused phrases, the track, featuring Juicy J, is great. As Perry reminds us, "Mark my words."

We've long known about all of the shitty effects that being bullied has on a teenager's life in the moment—misery, isolation, and often even an increased risk of suicide. But new research is showing that being tormented or ostracized as a teenager can have effects on a person's health that stretch into middle age and…