This BBC video filmed with a thermal imaging camera shows you how an exposed human body loses is heat in freezing temperatures.
https://sputnikglobe.com/20160205/heat-loss-exposure-winter-1034287875.html
Heat Loss Visualised 'Predator' Style
Heat Loss Visualised 'Predator' Style
Sputnik International
This is why you really shouldn't walk around shirtless in winter. 05.02.2016, Sputnik International
2016-02-05T15:37+0000
2016-02-05T15:37+0000
2016-02-05T15:37+0000
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https://cdn1.img.sputnikglobe.com/img/103428/52/1034285271_54:0:1188:713_1920x0_80_0_0_101f83315872a09937806bcb8c9ca333.jpgSputnik International
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Heat Loss Visualised 'Predator' Style
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This is why you really shouldn't walk around shirtless in winter.