Kathmandu. What do you need to live, think once? Food? Water? Air? Or social media? Or something else? Surely the most essential element for living is water. About 60 percent of an adult body is water. Water plays an important role in regulating body temperature, delivering nutrients to cells, removing waste through the kidneys, and other bodily functions. But drinking plenty of water is not enough to keep the body healthy. It is also important to know when and how much water to drink. Many people focus on drinking only eight glasses of water in 24 hours. One should not drink too...