5 smart ways to exercise in the heat

Long summer days give us plenty of time to exercise outside after work (or before work, for you early risers). And those summer bike rides, trail runs and laps in the pool are extra healthy: research shows that outdoor workouts can reduce stress and boost mood better than indoor ones. But physical activity in summer heat also has some risks, including overheating and dehydration. So while you’re out there working up a sweat, remember these tips for staying safe.