As the Summer days get longer and steamier, it always feels like we need more than one iced coffee to get us moving after that morning run. According to Meg Furstoss, MS, NSCA-CSCS, and cofounder of Precision Sports Performance, being outdoors means you are also dealing with the warmer temperatures. "Make sure not to overheat as that can cause headaches and even migraines," she explained. "Stay hydrated. Drink plenty of water before, during, and after each workout."