Driving back from South Caroline today I had to remind myself, keep drinking water! Our bodies are roughly composed of 60% water as adults. Therefore, women should drink about 9 cups of water a day and men about 13 cups! Water flushes out waste from our body and a vital nutrient to the life of every cell. Carry a tumbler or water bottle with you and keep refilling it. Activity factor and climate can affect the amount of water that should be consumed.