Your body uses up its water supply during the night when you sleep. You don't always wake up in the middle of the night to refill your water stores.
When you make a habit of drinking water before brushing, you will notice your immunity becoming more robust. There will be fewer incidents of you falling prey to illnesses such as common cough and cold, flu or hay fever. Yet another surprising benefit is that drinking water before brushing will lower high blood pressure and regulate blood sugar levels throughout the day.
When you start the day with a glass of water, you ensure that problems like gastritis or indigestion will not plague you.
Source: India Herald - SIBY JEYYA

