Everywhere in the world women live longer than men - but this was not always the case. The available data from rich countries shows that women didn't live longer than men in the 19th century. What's the reason why women live longer than men? And how is this difference growing as time passes? We have only a small amount of evidence and the evidence is not sufficient to reach a definitive conclusion.

Everywhere in the world women live longer than men - but this was not always the case. The available data from rich countries shows that women didn't live longer than men in the 19th century. What makes women live much longer than men today and why has this advantage increased in the past? The evidence is limited and we only have partial answers. While we are aware that there are behavioral, biological and environmental variables that all play a role in the longevity of women over males, we aren't sure how much each factor contributes.

Everywhere in the world women live longer than men - but this was not always the case. The available data from rich countries shows that women didn't live longer than men in the 19th century. What is the reason women are more likely to live longer than men? What is the reason the advantage has grown as time passes? We have only a small amount of evidence and the evidence is not strong enough to make an absolute conclusion.

Everywhere in the world women live longer than men - but this was not always the case. The available data from rich countries shows that women didn't live longer than men in the 19th century. What's the reason women live longer than men? What is the reason is this difference growing as time passes? We only have partial evidence and the evidence isn't sufficient to draw an unambiguous conclusion.