The Grinch receives a DNA kit from 23andMe as a gift and decides to see what all the fuss is about. He learns that his genes make him more likely to toss and turn at night as well as prefer salty snacks over sweet. The results seem pretty accurate, and The Grinch is pleased. Maybe he does like getting gifts after all ... eh, maybe not. "The Grinch," in theaters now, is rated PG.