Climbing the stairs one at a time burns over three times more calories than taking them two at a time. This is independent of the size of the stairs.

Actor Emilio Estevez has a set of mouth guards that cover his teeth and allow him to chew on extremely hard things without injury. He uses these guards to allow him to chew on rocks so that he can build up his jaw muscles, under the belief that a heavily-muscled jaw would make him look more "imposing".