In 2015, Sweden lost its place among the world’s 10 leading countries in terms of female life expectancy for the first time in documented history. Through our research we now know that Sweden is increasingly lagging behind in terms of life expectancy, particularly for women, but some aspects remain unknown: Is the Swedish development unique or shared with other countries? Are some aspects of these trends a Nordic rather than a Swedish experience? Will they continue in the near future? How does immigration affect the development?