What is the Norse gods' secret to staying forever young?
Eating the golden apples of Idun kept the gods forever young. But one day Loki, the mischief maker, was forced to give Idun and her apples to a shape-shifting giant named Thjasse who stole her away when he was in the guise of an eagle. The other gods found out what Loki had done, changed him into a falcon and had him steal Idun and her apples back.