Staying warm: What does an unheated room do to your body?

Staying warm: What does an unheated room do to your body? Mention deadly cold and I think of polar explorers with icicles dangling from their beards and mountaineers tackling the heights of Everest; of fingers turning black with frostbite and the chilling clutch of hypothermia.

So I was sceptical when I was asked to take part in a cold experiment that took place at just 10 degrees Celsius. Yes, 10C.

To me that's mild, nowhere near freezing and certainly no Arctic blast. Surely we'd have to go much colder before putting a strain on the body? I was wrong. BBC News