Dr. Youngquist: Yeah, absolutely. And some of those juices that are high in sugar actually cause you to be more dehydrated. So they will cause what's called a diuresis or cause you to urinate more fluids than you actually took in. So they can actually be a negative in terms of overall hydration status. And I think that some of the mild symptoms in kids, that are probably true for adults as well, are feeling tired, lethargic, not able to concentrate. Those may be signs that you are dehydrated.