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 the advantage has grown over time? The evidence is sketchy and we're left with only incomplete answers. We recognize that biological, behavioral and environmental factors all play a role in the fact that women live longer than men; however, we do not know how significant the impact to each of these variables is.

We are aware that women live longer than males, regardless of weight. But this is not because of certain non-biological factors have changed. These are the factors that are changing. Some are well known and relatively straightforward, like the fact that men smoke more often. Others 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 افضل شامبو وبلسم 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 - it means that in all nations a newborn girl can expect to live for longer than a new boy.1

The chart below shows that although there is a women's advantage throughout the world, the differences between countries can be significant. In Russia women are 10 years older than males; while in Bhutan the gap is less than half one year.

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In countries with high incomes, the women's advantage in longevity was previously smaller.
Let's look at how the advantage of women in terms of longevity has changed over time. The next chart plots male and female life expectancies at birth in the US during the time period between 1790 and 2014. Two things stand out.

The first is that there is an upward trend. as well as women in the US live much, much longer than they did 100 years ago. This is in line with historical increases in life expectancy everywhere in the world.

The gap is growing: Although the advantage of women in terms of life expectancy was very small however, it has grown significantly in the past.

When you click on the option "Change country in the chart, verify that these two points are applicable to other countries with available information: Sweden, France and the UK.