We are all told that drinking lots of water is good for our health and know that, as a general rule, eight glasses a day is the advice given.
But what would happen if we stopped drinking water all together?
It's an important question to ask - approximately 65% of an adult body is made up of water.
It regulates our body temperature, cushions our joints and lubricates our eyes.
This easy to follow video published by AsapScience shows why water is so important to us and what would happen if we cut it out of our lives.
Using illustrations, the video shows the signs of dehydration, how dehydration affects our daily lives and how long we can go without any water before it begins to affect our organs and long-term health.