The 15 countries where people live the longest

The World Economic Forum (WEF)'s recently-released Global Competitiveness Survey doesn't just look at the financial health of countries around the world - it also looks at the health of populations.

The WEF ranked countries in terms of the average life expectancy, showing where in the world people live the longest.

As you'd expect, the more developed the country, the more likely it is to have a longer life expectancy due to access to a high level of healthcare, as well as typically healthier diets.

However, what's interesting is that some of the countries listed have a lower life expectancy than expected due to the rise in mental health related issues resulting in suicide.

WEF ranked the top 10 but countries coming in joint spots means there are actually 15. We've cross referenced the ranking against OECD data on each country to try and figure out why people there live so long - check it out.