It's also essential for proper brain function. We often hear about drinking eight glasses of water a day or that water is essential, but did you know that drinking too much water can also be dangerous ...

Water makes up roughly 60-70% of the human body, and the fluid leaves your system constantly through breathing, sweating and urine. So, knowing how much water to drink daily isn't just about thirst.

Not drinking enough water can cause dehydration and a range of health issues, from headaches to kidney strain and mood ...