On World Population Day, let's go to one of the fastest-ageing countries in the world: Japan. The country is not only getting greyer, its population is shrinking. In 2022, the number of births fell for the seventh year in a row to below 80,0000 for the first time. But some local leaders are trying to stop that trend. The rural town of Nagi seems to have found a solution, as our team on the ground reports.
