Try visiting Yakutsk – the Russian city where 'a bit nippy' means minus 50C, and a quick dash to the corner shop could end in frostbite.
At minus 35C, the air will cold enough to numb exposed skin quickly, making frostbite a constant hazard.
Yakutsk is a remote city in Eastern Siberia (population 200,000) famous for two things: appearing in the classic board game Risk, and the fact that it can, convincingly, claim to be the coldest city on earth.
In January, the most freezing month, average "highs" are around minus 40C; today the temperature is hovering around minus 43C, leaving the city engulfed in an oppressive blanket of freezing fog that restricts visibility to 10 metres.
In Yakutsk itself, most of the cars are second-hand Japanese imports; apparently, they handle the cold better than Ladas and other traditional Russian vehicles.
Still, local people habitually leave the engines running if they have to stop off for half an hour, and some leave them on all day while at work to stop them conking out and to make driving bearably warm.