By Graeme Murray Water plays a vital role in our physical well-being – but drinking too much could actually cause damage to the brain, an expert has warned. Staying hydrated is essential for optimal health and several bodily functions, like supporting digestion, regulating body temperature, and facilitating nutrient transport. But drinking too much can lead to overhydration and occurs when we consumer too much water. Around eight glasses of water a day is a recommended as a good starting point – however, it also depends on environment, the amount of exercise done and health conditions such as …