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 are more likely to live longer than men? Why the advantage has grown as time passes? There isn't much evidence and we're left with only partial answers. We know there are biological, psychological, and environmental factors which all play a part in women's longevity more than males, اضيق وضعية للجماع we aren't sure the extent to which each factor plays a role.

Independently of the exact number of pounds, we know that a large portion of the reason women live longer than men do today however not as previously, is to do with the fact that several key non-biological factors have changed. What are these factors that have changed? Some are well known and relatively straightforward, like the fact that men smoke more often. Some are more complex. 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 اضيق وضعية للجماع men and women. As we can see, every country is above the diagonal parity line - it means that in all nations the newborn girl is likely to live for longer than a new boy.1

This chart shows that, while there is a female advantage everywhere, cross-country differences can be significant. In Russia, women live 10 years longer than men. In Bhutan the difference is just half a year.

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In rich countries the longevity advantage for women was previously smaller.
Let's examine how the gender advantage in longevity has changed with time. The following chart shows the male and female life expectancies at birth in the US in the years 1790 to 2014. Two distinct features stand out.

First, there is an upward trend. as well as women in the US are living much, much longer today than a century ago. This is in line with historical increases in life expectancy everywhere in the world.

Second, there's an increasing gap: The female advantage in life expectancy used to be very modest however, it has increased significantly over the last century.

By selecting 'Change Country from the chart, determine if these two points are also applicable to the other countries with available data: Sweden, France and the UK.