Icy beverage seems to keep body cooler longer
                                
                                
                                    (Newser) -
                                    Excellent news on the exercise front—ice slushies help. Two important caveats: They must be accompanied by actual exercise, and their benefit is evident only on hot days. It seems that people who drink the syrupy, icy concoctions before exercising—or, say, running a 5K or playing tennis—are able...