A woman has been completely transformed after visiting the happiest city in the world . Leila Najafi has committed to being more active and more positive with her outlook on life following the trip, in a huge shake-up to her way of living beforehand. Copenhagen , the capital of Denmark, is consistently ranked the highest in terms of resident satisfaction and overall happiness. Much like Amsterdam, the city sees people getting around on bikes as opposed to cars that clog up the roads. As well as