Heat stroke is a danger in extreme temperatures, but a major risk factor for dying during a heat wave is cardiovascular disease and other pre-existing health conditions.
The cetacean brain has a specialised thermogenic system that helps the animal’s brain to produce enough heat to maintain a functional brain temperature.
Mammals’ ancestors had a third eye and the fossil record of its disappearance tells us the story of the evolution of one of our most important features: warm blood.
Are neck, hand or forearm cooling, ice-cube sucking or cold showers effective ways to lose heat on those dog days of summer? Can sports clothing keep you cool by wicking away sweat? When the heat is on…
An ice cream on a summer’s day may hit the spot, but it won’t help you beat the heat.
Mark Crossfield/Flickr