"I don't know why I have lived this long," Chan Chi -- one of Hong Kong's oldest people -- was quoted as saying in the South China Morning Post during an annual feast for the city's elders.
"Maybe it has to do with the fact that I have lived a sex-less life for many years -- since I was 30," said Chan, a widower whose youthful bride perished during the Japanese invasion in World War II.
Chan, from Hong Kong's less built-up New Territories hinterland, was pictured looking sprightly and eating heartily at the banquet.
A former chef, he said a low-fat diet and regular dawn exercises had helped him fight off the ravages of old age.
But the centenarian, who's had no difficulty living a monastic existence for nearly 80 years, admits the pleasures of tobacco have been harder to resist.
"Now I want to quit," he was quoted as saying of his decades-long cigarette addiction. "Maybe the government should ban cigarette sales so I can give it up," he added.