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 more than men do today, and why is this difference growing in the past? We have only a small amount of evidence and the evidence isn't sufficient to reach a definitive conclusion. We know that biological, behavioral and environmental factors contribute to the fact that women have longer lives than men, however, we do not know how much the influence of each one of these factors is.

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? And how the advantage has grown over time? We only have a few clues and the evidence isn't sufficient to draw an absolute conclusion. We recognize that biological, behavioral and environmental factors contribute to the fact that women live longer than men; but we don't know exactly what the contribution of each one of these factors is.

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 have a longer life span than men? And why does this benefit increase in the past? We only have a few clues and the evidence is not sufficient to draw 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's the main reason women live longer than men? And how does this benefit increase over time? The evidence is sketchy and we have only some answers.

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 are more likely to live longer than men? And how the advantage has grown as time passes? We only have partial evidence and the evidence isn't strong enough to make an unambiguous conclusion.