This video wins today's pseudoscience quackery sweepstakes. It's an ad for "DEXTRÜS," a vibrator which promises to make you smarter. But wait — there's more. Because it's all based on "research" into how left-handed people have orgasms.

I think my favorite part is their suggestion that you can use the vibrator "discreetly" at work. You know, to make yourself smarter! I've never seen this collection of nonsense ideas concatenated quite like this before. You've got to love the crackpot ingenuity that cobbled together the idea of a "left brain orgasm" and tried to turn it into a work productivity tool.

[h/t Maggie Koerth-Baker]