How can you make it safer to exercise on a hot day?
A. Do not exercise between 11 a.m. and 5 p.m., the hottest hours of
the day.
B. Wear loose-fitting clothes that allow sweat to evaporate.
C. Drink water before, during, and after a workout. Drink water at
least every 20 minutes while exercising.
D. All of the above.