It’s Labor Day weekend, and that means getting together with family and friends. One of my favorite foods to serve at a cookout or picnic is watermelon. And since one slice of watermelon has nearly 10 ounces of water, it’ll hydrate you as much as drinking a bottle of water. It also contains a tissue-healing antioxidant that acts like sunscreen. And eating two cups a day can cut your risk of sunburn by 26% – and cut your recovery time in half if you do get burned.