Peter Gardner, a 61-year-old Briton hunkered down in the snow-covered northeast city of Tianjin, prefers more traditional methods.
Like hundreds of millions of others, his movements have been severely restricted by the Chinese authorities in an attempt to stop the deadly virus spreading.
Gardner, an operations manager for an American firm, said he is allowed out of his block of flats for only 30 minutes in the daytime to stock up on essentials.
To make up for the lack of exercise, he twice runs up and down the emergency stairwell of his 17-floor apartment tower three times a day.
“It’s good in some ways,” said Gardner, whose family have temporarily left China, leaving him with their two guinea pigs for company.
“I can’t go out for beers and I’ve lost about three-quarters of a kilo,” he said by telephone.
“There are no places to eat, nowhere to go and I’m eating simply, because I can’t buy the stuff I want.”
by Peter Stebbings / with Danni Zhu in Beijing