Examine individual changes

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 is this difference growing as time passes? We only have a few clues and the evidence isn't sufficient to draw an unambiguous conclusion. We know there are behavioral, biological and environmental factors which all play a part in women's longevity more than males, we aren't sure the extent to which each factor plays a role.<br><br>We know that women are living longer than males, regardless of weight. But it is not due to the fact that certain 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.<br><br>Everywhere in the world women tend to live longer than men<br>The first chart below shows life expectancy at birth for men and women. We can see that all countries are over the diagonal line of parity. This means that a newborn girl in every country can be expected to live for longer than her younger brother.<br><br>This chart is interesting in that it shows that, while the advantage for women is present everywhere, [https://Glorynote.com/%D8%B5%D8%A8%D8%BA-%D8%A7%D9%84%D8%B4%D8%B9%D8%B1-%D8%A8%D8%A7%D9%84%D8%A3%D8%B3%D9%88%D8%AF/ صبغ الشعر بالاسود] country-specific differences are huge. In Russia women have a longer life span than males; while in Bhutan the gap is less than half each year.<br><br>__S.17__<br>__S.19__<br>In rich countries the advantage of women in longevity was previously smaller.<br>Let's look at the way that female advantages in terms of longevity has changed over time. The next chart shows male and female life expectancies when they were born in the US between 1790 and 2014. Two distinct points stand out.<br><br>There is an upward trend. Men and women in America have longer lives than they were a century ago. This is in line with historical increases in life expectancy everywhere in the world.<br><br>The gap is growing: Although the advantage of women in life expectancy was very small but it has risen significantly over time.<br><br>You can confirm that the points you've listed are applicable to other [https://www.blogher.com/?s=countries countries] with data by selecting the "Change country" option in the chart. This includes the UK, France, and Sweden.