Punctuality in taking water will help you to maximize the effectiveness of your body, just follow this :
a) 1 glass of water 30 minutes before the meal will help digestion.
b) 2 glass of water after you wake up helps activate internal organs
c) 1 glass before you sleep will help avoid stroke or heart attack at mid night.
d) 1 glass after taking bath helps lower BP.
e) Drink one cup of water every 15-20 minutes when doing exercise
f) Have a big glass of water at every transitional point of the day that is when you first wake up, before leaving the house, when you sit for work, etc.
g) drink 1.5 to 2 litre of water a day to hydrate body, reduce fatigue and help brain work.