Average life expectancy: 82.15 years

Aussies may be getting fatter and more anxious (know what makes anxiety worse), but they’re still expected to live a long time. This is due to a new and improved healthcare system and generally high standard of living. Another reason is that residents are better educated about how to stay healthy and why it’s important, according to Australian Bureau of Statistics. Australia made the Top 10 in the World Happiness Index for 2016.