IMPROVE YOUR GRADES

So I did some research on how to get better grades and saw a website which stated "Drinking water during a test increases your grades"http://www.bbc.co.uk/news/education-17741653, http://www.telegraph.co.uk/science/science-news/9211365/Taking-water-into-exams-could-boost-grades.html ....... guess i know how I'll appear next time we have a test