We should drink about 6-8 cups of water every single day, which is approximately around 2 litres of water.
Water is necessary for us, it plays an important role in our body including digestion, transport and excretion. Water can help the transport of materials, including the removal of waste from our body. Water is also where chemical reactions take place.
If we have lack of water, dehydration may occur. More serious, we may faint or even die. Therefore, we must drink enough water every day to maintain the proper functions of our body so as our health.