English 
فارسی The evidence implies that variations in chromosomes and you can hormonal between men and you will lady apply to resilience
Alterations in guy and you will maternal mortality possess an effect on life span differences when considering someone, however they don't totally give an explanation for boost in the brand new longevity gap that we've got observed in rich nations over the last 100 years.
(NB. For the same countries plotted in the chart less than, you can mention enough time-work at differences in endurance in the many years 0, fifteen and you may forty five within this entertaining chart)
Just what explains the female virtue and just why features they altered more than day?
Such as for example, boys are apt to have more bodyfat nearby brand new areas (he has significantly more ‘visceral fat') whereas ladies generally have more bodyfat seated really in facial skin (‘subcutaneous fat'). So it huge difference is determined each other by the estrogen and also the visibility out of the second X chromosome in females; plus it issues having toughness while the fat surrounding the new organs forecasts heart problems. step 3
However, physical variations can simply participate the story – otherwise we'd perhaps not come across particularly large differences around the places as well as over time.