We’ve heard a lot about overpopulation but for some countries including Japan and South Korea, the issue is not too many people, but too few. So in this Squiz Shortcut, we take a look at why some populations are shrinking, what those countries are trying to do about it, and if too few people is really such a big deal. Squiz recommends: Japan's Shrinking Population Faces Point of No Return - Newsweek OECD country birth rate tool HOSTS: Claire Kimball and Kate Watson PRODUCER: Lara Robertson