Benefits of Drinking Water - as part of the expert series by GeoBeats. There are many benefits to drinking water, the biggest one is that being hydrated makes you feel great. Drinking water combats fatigue, helps prevent and relieve constipation and kidney stones, and it can improve your immunity. Although they say to drink eight to ten glasses of water, that is really just a guideline, but the bigger you are the more water you need to drink. So, also, as the temperature and your perspiration and your activity level increases, your need for water will increase as well. A good way to tell how hydrated you are is to look at your urine. If it is a pale yellow color, you are probably pretty hydrated. If it is the color of a golden, bright sunset, you probably need to drink more water.