Water doesn't just quench thirst - it can keep you alert and regulate your blood pressure too, says a new study.
![Drinking Water Keeps Blood Pressure in Check Drinking Water Keeps Blood Pressure in Check](https://images.medindia.net/health-images/1200_1000/water.jpg)
Water increases the activity of the sympathetic - fight or flight - nervous system, which raises alertness, blood pressure and energy expenditure.
American Red Cross found in a study, that drinking 16 ounces of water before blood donation reduced the fainting response by 20 percent.
And because it raises sympathetic nervous system activity - and consequently energy expenditure - it does promote weight loss, Robertson said.
The study is reported in the June issue of the journal Hypertension.
Source-ANI