Dumb or just dehydrated?

We all know we could probably drink a little more water throughout the day, if only to keep the effects of increasingly hotter heat waves at bay. But staying hydrated can also dispel less dramatic symptoms than heat exhaustion—like being able to concentrate while your boss drones on about quarterly earnings. A study that limited participants’ water intake to just 6 ounces a day found that participants made more errors when playing a game requiring their continued focus. The amount someone needs to drink varies by gender, weight, height, muscle mass, heat exposure, etc., but there are some general guidelines. You could also use this color chart to tell if you’re dehydrated, or just follow the advice of my favorite summer camp call-and-response. Counselors: “Drink water!” Campers: “Pee clear!”