Why is it so important to stay hydrated?
Whether you’re a serious athlete or a recreational exerciser, it’s important to make sure you get the right amount of water before, during, and after exercise. All athletes need to drink extra fluids to replace body water lost during exercise (e.g. sweat). When it's warm, your body perspires more to help you cool down. And depending on the temperature, humidity, and the nature of your activity, you might not even realize how much you are perspiring. Don't rely on thirst alone to tell you how much you need to drink. To keep those muscles working and avoid fatigue; it's extremely important to drink plenty of liquids before, during, and after the activity.
How much water should I drink while exercising?
There are no exact rules for how much water to drink while exercising because everyone is different. You need to consider factors including your sweat rate, the heat and humidity in your environment, and how long and hard you are exercising.
As a general rule, to maintain adequate hydration, drink fluids pre, during and post game, Drink about 250 -300 ml of fluid two hours before the activity. That helps make sure you are well-hydrated before you ever go outdoors. Then, during the activity, try to drink 150-200 ml every 15-20 minutes