[Illustration by Li Min/China Daily]

Exercising in your residence keeps you in a fit state of mind and body.

Long Kang has just become a "keeper" and is building up his body and mind to face life's challenges.

The Beijing resident bought a yearlong membership at the online exercising platform Keep early this month.

"I feel like having to exercise, since it boosts immunity, which will, at the end of the day, be the ultimate defense against the novel coronavirus," Long says.

The membership costs the 32-yearold a little more than 200 yuan ($28.65) and gives him access to customized exercise sessions and detailed workout instructions.

Long is one of the many who have taken to keeping fit at home by using such applications. And, at this crucial time when people are urged to stay at home to keep healthy, to help contain the spread of the epidemic, doing exercise at home to burn calories and stay positive is turning out to be a cool new trend.

Long likes the convenience that the mobile fitness guidance offers.

"It's easy to follow and all I need is something like a yoga mat," he says.