Why do women live longer than men?

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? Why does this benefit increase as time passes? We only have partial evidence and the evidence isn’t sufficient to draw an informed conclusion. We are aware that behavioral, biological and environmental factors play a role in the fact that women live longer than men; However, we’re not sure how significant the impact of each factor is.

We are aware that women live longer than men, regardless of their weight. However this is not because of certain biological factors have changed. What are these new factors? Some are well known and relatively straightforward, like the fact that men smoke more often. Others are more complicated. For example, there is evidence that in rich countries the female advantage increased in part because infectious diseases used to affect women disproportionately a century ago, so advances in medicine that reduced the long-term health burden from infectious diseases, especially for survivors, ended up raising women’s longevity disproportionately.

Everywhere in the world women tend to live longer than men

The first chart below shows life expectancy at birth for men and women. As you can see, every country is above the diagonal parity line – this means that in all countries baby girls can expect to live for longer than a new boy.1

This chart is interesting in that it shows that, while the advantage for women exists everywhere, the global differences are significant. In Russia women live for 10 years longer than males. In Bhutan the gap is less than half a calendar year.

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The female advantage in life expectancy was much lower in rich countries than it is today.

Let’s now look at how the advantage of women in life expectancy has changed over time. The chart below illustrates the men and women’s life expectancies at the time of birth in the US between 1790-2014. Two things stand out.

The first is that there is an upward trend. Women and men in America live longer than they did 100 years ago. This is in line with historical increases in life expectancy everywhere in the world.

The second is that there is a widening gap: Blogarama.in.net/profile/ShanaHough The female advantage in terms of life expectancy used to be very small but it increased substantially during the last century.

You can check if the points you’ve listed are applicable to other countries with data by clicking on the “Change country” option on the chart. This includes the UK, France, and Sweden.