Does drinking more water always mean healthier kidneys? Not necessarily. How much water is good for your kidneys depends on your age, body size, activity level, weather and overall health. This guide explains proper hydration for kidney health, why the "8 glasses a day" rule is not a strict medical rule, and how light yellow urine can be a useful sign of adequate fluid intake. It also covers whether drinking too much water can harm the kidneys, especially for people with chronic kidney disease or kidney failure, and busts 7 common myths about water and kidney stones. For expert advice on kidney disease prevention and personalised hydration needs, consult Dr. Satyanarayana Garre, Specialist in Nephrology in Hyderabad