Question

Why do women live longer than men?

Answer 1

Hint: The females differ from the males by having an extra X chromosome and also lack Y chromosome. The females and males have different sets of hormones which control features of two sexes. Life expectancy of both the genders can be calculated by closely looking into two parameters – one biological and the other behavioral.

Complete answer:
We all might have noticed this in our own families, that the number of grandmother’s are more than the number of grandfather’s.
Not just in India but across the world, we can notice this trend. According to research, females live $7.8\%$ more than males.
Let us discuss this further under the given points-
Testosterone is a high risking behaviour hormone whereas estrogen is protective and has antioxidant properties.
Women’s give birth to offspring by undertaking a lot of pain. The whole painful process of giving birth and the parental care makes her stronger.
Men abuse themselves so much that they get prone to many diseases like heart attack, lung cancer etc. at an early age due to smoking, drinking and all other similar things.
Therefore, from the above discussion we can easily make out that the genetic make up as well as the behaviour of each gender contribute to their survival.

Note:
The International Journal of Endocrinology has provided evidence about estrogen that it can prevent the kind of DNA damage that leads to several diseases.
The presence of extra X – chromosomes also contributes to the better survival rate of females.