Kenya has dominated long-distance running for decades and a lot of people there could run a decent marathon. But the many of the successful runners come from a small region in the west of the country, many coming from the same tribe.
13. The United Kingdom.
No one knows where this comes from. An OECD study in 2009 found the UK to have the best teeth in the world, with the average 12-year-old requiring surgery to replace or fill just 0.6 teeth. Poland came out worst, with nearly four teeth needing to be fixed per child.
The Danes are not the tallest people in Europe: the Dutch take that prize, with men measuring six feet, one inch on average. Danes have to make do with being just six feet tall on average, according to a study from Princeton and Munich Universities.