6. Iceland

Low pollution, low population, and no mosquitoes. Excellent air quality, wonderful natural green cover and a diet that consists mainly of seafood could be the secret of their long lives. Iceland is also regularly featured in the list of the happiest countries in the world. Citizens have an average life expectancy of above 82 years.
5. San Marino

If you were rich, exercised regularly, and worked a desk job, your life would lengthen too. That describes almost all the citizens of the third smallest nation behind the Vatican City and Monaco. If being rich and healthy wasn’t enough being happy surely helps. They have an average lifespan of about 81 years.