Our bodies are made up of 50-60% water. Without it, humans can only survive 2 to 3 days. Water has many functions in the body including transporting nutrients, removing waste and regulating temperature.
For a healthy, hydrated, functioning, energized body, adults should drink about 6 to 8 glasses of water per day - depending on activity level. Avoid drinking too many soft drinks and juices as they can be very high in sugar and chemical sweeteners, which can be harmful to the teeth, liver and digestive system. Aim for your liquid intake to come mainly from water.