Career
Born on March 13, 1903, Koide worked as a tailor for a men"s clothes shop in Tsuruga, Fukui. When he turned 110, Koide could still read newspapers without glasses and could eat without dentures. He became the oldest living person in Aichi Prefecture on March 31, 2014, following the death of Nagoya resident Tsuya Miura, who died at the age of 111.
When asked about the secret to his long life, Koide responded by stating that "the best thing is to not overdo" and recommending abstinence from smoking or drinking.
He died on January 19, 2016, of heart failure and pneumonia in a hospital in Nagoya at the age of 112 years, 312 days, and was succeeded as the world"s oldest man by Yisrael Kristal.