In one generation, Japan has gone from being the youngest developed country to the oldest Getty Images

USHI OKUSHIMA is the oldest resident of Ogimi, the most elderly community in Japan – the country where the average age is higher than anywhere else in the world. At 108, she still takes to the floor for traditional Japanese dances. Afterwards she dabs a little French perfume behind her ears and sips the local firewater. Okushima was born when Japan had only recently seen off the shogun warlords. If an ageing population is on the way, she is not a bad advert …