This is interesting!! I knew you needed your minimum water to
flush the toxins out of your body, but this was news to me.

Correct Time to Drink Water....

From A Cardiac Specialist!

Drinking water at certain times maximizes its effectiveness on the body:

2 glasses of water after waking up - helps activate internal organs

1 glass of water 30 minutes before a meal - helps digestion

1 glass of water before taking a bath - helps lower blood pressure

1 glass of water before going to bed - avoids stroke or heart attack

Please pass this to the people you care about

I can also add to this.  My Primary Care Physician told me that water at
bedtime will also help prevent night time leg cramps.  Your leg muscles are
seeking hydration when they cramp and wake you up with a Charlie Horse.