Just like doing the wave at a packed stadium, free food can instantly get a crowd riled up… which is exactly how I feel when I encounter a bowl of complementary fruit at a hotel or gym. My go-to are the nutrient-dense apples—I can barely pass an assortment of Granny Smiths without picking up one (or, okay, three) to snack on later in the day. However, when I go to scoop my apple out of my jammed-packed purse hours later, it tends to be a bit bruised and beaten up by the time I get around to actually eating it. And if, say, several days go by before I bob for apples in my bag, those bruises tend to turn into full-on wounds. So, is it safe to eat a bruised apple after it’s been through such a long journey?…