Greatist Bites examine what's fun, weird, innovative, and downright interesting in health, fitness, and happiness — all in 250 words or less. Check out all recent Bites here.

Chocolate is a force more powerful than Superman, Batman, and a hydrogen bomb put together, but what exactly makes it so intoxicating? Finally, someone gives it to us straight: This short episode of Sci Show breaks down the mysterious chemical in chocolate that has properties similar to caffeine, other stimulants, and even Viagra — and that, used the wrong way, can work as a laxative or induce vomiting. You’ll never look at a Snickers the same way again!