Women live longer than men

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 Women live longer than men


It makes no difference whether it is the United States or Latin America. The average life expectancy of women is higher: 81 years versus 76 years for men. 81 years versus 76 years for men. Why is that? It is clear that women live longer than men. There are two biological causes and one social cause. Says Virginia Zarulli, professor at the University of Southern Denmark.

Women live longer than men



Dangerous testosterone

The first has to do with differences in sex hormones. Cisgender women produce more estrogen and less testosterone than men. And estrogen protects against cardiovascular disease. This is supported by a 2017 study. Its published in the journal Biology of Sex Differences, is cited by LiveScience.

Having a lot of testosterone implies an increased risk of suffering from a number of diseases. For example, breast cancer in women and prostate cancer in men. The hormone is linked to risky behaviors and higher levels of aggressiveness. It increases the risk of dying at an earlier age, Zarulli explains.

The second cause is genetic. Humans have two sex chromosomes: X and Y. Cisgender women have two X chromosomes, and men have one X and one Y.

Women live longer than men


Strong girls

"The Y chromosome is an X chromosome missing a leg. It is missing genetic material. Females have this double X chromosome as extra genetic material. It's plan B if a malignant mutation arises on one of the two X chromosomes." So emphasizes Zarulli, quoted by LiveScience.

Zarulli recalls a 2018 study. It suggested that baby girls have higher survival rates than baby boys. This, in environments with particularly high mortality rates (famines, epidemics).

Males tend to smoke and drink alcohol more frequently than females. Thirty-five percent of males smoke, as opposed to 6% of females. Women are more likely to follow a healthy diet. Men prefer fried foods and fast food. And then we wonder why women live longer than men.

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