Rescue Workers Can Prevent Brain Damage with Icy Nasal Spray | Popular Science

http://www.popsci.com/technology/article/2010-03/preventing-brain-damage-icy-nasal-spray

After cardiac arrest, lowering someone's body temperature can prevent life-threatening brain damage. It's so critical that New York City requires ambulances to take some patients up to 20 minutes out of the way to hospitals with cooling equipment. EMTs could improve patients' chances further using RhinoChill, a new portable nose spray that cools the brain on the scene.