18 Things That Happen to Your Body When You Don't Drink Enough Water

You're not peeing that often
Sticking to the toilet theme: how often do you pee? And when you do, what color does it come out? Sorry to get personal here, but dark, infrequent pees are a surefire sign you're not drinking enough water, and that's not great for your kidneys. If you combine your lack of hydration with an increased intake of sodium and/or caffeine, then you might be left with kidney stones, which come about via the buildup of minerals in your urine, and trust me: it's going to be no picnic getting them out.