If you have a big race or tennis match coming up, increase your fluid consumption about 24 hours before the event. Drink about a pint of liquid 2 hours before to get your body ready to process the added fluid. You'll want to drink regularly as you work out to replace the water you lose while you sweat. What you drink doesn't have to be ice cold, but should at least be cooler than the surrounding temperature. What you drink also is important.
Water is good.
Alcohol is not. In fact, water is about the best thing you can drink, but doctors say a sports drink with additional carbohydrates or electrolytes is a good idea if you're working out or playing for more than an hour or so. Other Topics Health Watch is intended to provide general information only and should not replace the advice of a medical professional. You should contact your physician if you have questions about any of these topics.