By Milo Boyd A global hub of naked male wrestling has shut up shop after 1,000 proud years due to demographic issues. For the past millennium Japan’s Somin-sai festival has attracted hoards of men who share a love of dropping their trousers in public and having a good scrap. They would lock horns wearing nothing but white loincloths and in the punishing cold February temperatures. The event – which is more commonly known as the naked men festival – was held for the last time on Saturday. The reason for its death is Japan’s aging population. The organisers of Somin-sai have been unable to find …