Kb friends and all,
Especially in this hottest July on record, whatever sport you are doing- keep yourself well watered and away from any form of dehydration. Not only is it dangerous to be functioning at high performance levels without sufficient water, its just downright silly to do. So don’t!
Here in Tokyo, the sweat is pouring off after just a few minutes of regular exercise. If you feel yourself getting a bit feint during your regular workout, perhaps tone things down a notch if necessary, or take more breaks and keep on the water a little at a time. Make sure you prep yourself well before the workout as well- plenty of fluids, dont overeat, and give your body the chance to perform under these at times extreme conditions.
Whatever you are doing, whether its going out for an all day hike, a shop fest or tennis with friends, get enough water!
Most of all- have fun, but be safe and smart.