Do neck cooling fans really help you beat the heat?

Jeffrey Pagulong and his son Christof stand in front of the Lincoln Memorial in Washington, D.C., on July 29. Pagulong, who is visiting from Boston, said his neck fan "helps a lot" in the high temperature. It makes noise, he said, but the noise is better than the heat.

You might see more people wearing a neck cooling fan to fight the summer heat. But can they really help? We talk to experts about how our bodies deal with heat — and to people using the fans.

(Image credit: Bill Chappell)