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 why does this benefit increase in the past? We only have partial evidence and the evidence is not sufficient to reach a definitive conclusion. We know there are biological, صبغ الشعر بالاسود psychological, and environmental factors which play a significant role in women living longer than males, we aren't sure how much each one contributes. It is known that women live longer than men, regardless of their weight. But this isn't due to the fact that certain biological or 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. 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 men and women. It is clear that every country is above the diagonal line of parity. This implies that a baby girl from any country can expect to live longer than her older brother. Interestingly, this chart shows that while the female advantage exists in all countries, country-specific differences are huge. In Russia women live 10 years longer than men. In Bhutan, the difference is just half a year. __S.17__ __S.19__ The advantage for صبغ الشعر بالاسود women in life expectancy was less in the richer countries than it is now. Let's examine how the female longevity advantage has changed in the course of time. The chart below shows gender-based and female-specific life expectancy at birth in the US from 1790 to 2014. Two specific points stand out. The first is that there is an upward trend: Men as well as women in the US live a lot, 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 widening: While the female advantage in life expectancy was once extremely small, it has increased substantially in the past. By selecting 'Change Country by country' in the chart, you will be able to confirm that the two points are applicable to other countries that have available data: Sweden, France and the UK.
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