Kids, older adults especially vulnerable to extreme heat

At Kids Can, they're keeping an eye on the heat index. With higher temperatures on the way, teachers know it's probably safest to keep playtime indoors. "Especially with those younger kids, they're not good about telling us when they're hot," said Cody Hunter, the early childhood education director, "But their bodies show it a lot quicker than the older kids ... Those younger kids, they'll go on playing and playing. And sometimes they'll just hit the wall."