Importance of drinking water

Importance of drinking water at the correct time maximizes its effectiveness on the Human body :
1.) 2 glasses of water after waking uphelps activate internal organs.
2.) 1 glass of water 30 minutes before a meal helps digestion.
3.) 1 glass of water before taking a bath helps lower blood pressure.
4.) 1 glass of water before going to bed avoids stroke or heart attack.