27 February 2018 4 6K Report

It depends on society. On average, however, men live much shorter than women in many societies. For instance, the life expectancy of men in the United States is about 76, while that of women is about 81. That is an interesting fact.

What factors make the difference in the life expectancy between men and women? Are they biological factors (e.g., gene, sex hormone), psychological factors (e.g., life stresses), social environment (e.g., lifestyle), or combination of them?

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