Water is essential to life, but there is no single amount that every person needs to drink each day. Your fluid needs can change depending on factors such as age, sex, physical activity, pregnancy, breastfeeding, illness and the temperature of your environment. People who spend long periods outdoors or exercise in hot weather may need more fluids because they lose more water through sweat.  For people living in hot climates, including Nigeria, paying attention to hydration can be particularly important. Why does your body need water? Water is involved in many normal body functions. It helps the body regulate temperature, lubricate and cushion joints, protect sensitive tissues and remove waste through processes such as urination and sweating. Adequate fluid intake also helps prevent dehydration.  Water is not only obtained from a glass or bottle. Total water intake includes drinking water, other beverages and water contained in food.  That means foods suc...