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 have a longer life span than men? What is the reason is this difference growing over time? We only have partial evidence and the evidence isn't strong enough to make an informed 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 is the reason women are more likely to live longer than men? What is the reason the advantage has grown in the past? We only have a few clues and the evidence isn't sufficient to support an informed conclusion. We know there are behavioral, biological and environmental factors that play an integral role in women living longer than men, we don't know what percentage each factor plays in.

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 main reason women have a longer life span than men? Why does this benefit increase in the past? The evidence isn't conclusive and we have only partial solutions. Although we know 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 one 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 live longer than men? What is the reason has this advantage gotten larger as time passes? We have only a small amount of evidence and the evidence is not sufficient to reach an informed conclusion.