Drink Up! Study finds most U.S. kids are not adequately hydrated

Drink up, kids! That's the message from a first national study of its kind. It finds that more than half of children and teens are not adequately hydrated.

Amie Buckner was prepared for a hot day at the park with her children.

"Wherever I go, I have a water bottle and usually they've lost theirs or it's not in sight. Everyone drinks from my water bottle," said Buckner.

It's easier to think about hydration on steamy days. But year-round?

"We're not sweating. We think we're not sweating and we don't think about drinking it as much," said Shelly Summar, a registered dietitian at Children's Mercy Hospital.