His family members say Nonaka still moves about by himself in a wheelchair.
He reads a newspaper after breakfast every morning, and loves to watch sumo wrestling and samurai dramas on TV. But his favorite pastime is soaking in the hot springs and relaxing. Nonaka has outlived all seven of his siblings, as well as his wife and two of their five children.
His status as the world's oldest living man was confirmed by Guinness World Records. Nonaka received the title after Francisco Nunez Olivera from Spain passed away in February aged 113.
He is one of about 67,800 centenarians in Japan, the fastest-aging country in the world, with the highest average life expectancy — 80.98 for men and 87.14 for women, according to the Japanese Ministry of Health, Labor and Welfare.