It's no joke!

(Click on the article for an enlarged version)

This report is about a Taiwanese woman who drank 7 litres of water a day - 3 times more than than recommended amount - in the hope of decreasing her blood pressure.

In short, the article tells us that drinking too much water on a constant basis can lead to hyponatremia, a condition where there is insufficient sodium in your blood, resulting in loss of sight or blindness.

So while it is good to drink lots of water, do not overdrink.