I have been advised to consistently drink 100 (one hundred) oz of water/water-based liquids every day. I've done pretty well at keeping to that, but now that I have a cold, I'd like to drink more. On the other hand, I understand that the first undesirable thing too much liquids will result in is over-diluting the electrolytes in my blood. I know that there are electrolyte supplements, such as Gatorade, and even calorie-free supplements that are easy to fit into my diet. How much is known about how much electrolytes I should add for how much water I drink beyond some point, and at what point does it start approaching overhydration?