In which two ways do biological factors influence women's longevity over men's longevity?
Biological factors influence women's longevity over men's longevity as women at the very start of their life have an extra copy of the X chromosome. Hence if some mutation occurs in one the other gene on the other X chromosome can get transcribed and translated. Further, the female hormone Estrogen facilitates the elimination of bad cholesterol and thus offers some protection against heart disease; while the male hormone testosterone, is linked to violence and risk-taking.
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