The Color of Your Urine is an Indicator of Hydration
If you are adequately hydrated, you should be urinating about once every two to four hours, and your urine should be colorless or a very pale yellow (the color of hay or lighter). If it is darker than that, you haven’t had enough fluid. Headaches and dizziness are a late sign of dehydration. If you start experiencing those, you really need to up the water intake, and quickly.