All those fist-pumping, end zone-dancing hot dogs in the NFL have a new way to keep their cool: a...

All those fist-pumping, end zone-dancing hot dogs in the NFL have a new way to keep their cool: air-conditioned shoulder pads.

Blowing cool, dry air underneath football pads after vigorous exercise appears to hold core temperature down, reduce heart rate and provide the player with a sense of being cooler, researchers at the University of Florida report. more...