A centenarian Chinese couple have gone viral for being born on the exact same day, month and year and revealing their simple secret to longevity.

Numerous netizens have been captivated by the 102-year-old couple’s remedy for a long life, which is minding your own business.

The couple went viral after a family portrait surfaced showing Yuan Guanjin and his wife Yin Hezhen wearing white shirts and red jumpers, sitting with their children and grandchildren.

The heartwarming photograph, taken on January 19, at their home in Hangzhou’s Xiaoshan District in Zhejiang province, eastern China, drew widespread attention online.

The picture was liked not just for its warmth, but because Yuan and Yin share the exact same birthday, March 26, 1924.

In 1950, Yuan, a farmer who had completed five years of school and was once a district-level running champion, was introduced to Yin, who is from a neighbouring village.

Yin came from a well-off farming family and was often praised for her beauty.