First, innate advantages.
The chromosomes of women are different from those of men. The female chromosome is XX, while the male chromosome is XY. It is precisely because of the different genes that the two sides have different abilities to resist diseases. For example, there is something wrong with one X chromosome of women, but there is another X chromosome that can be replaced, which leads to stronger disease resistance of women. But men are different, because their chromosomes are different, so once there is a problem with the X chromosome, the cells will fail, so men are more likely to get sick. In this way, it is easier for women to stay healthy most of the time, and they may get sick much later than men.
Second, different habits.
Men have more bad habits than women. For example, many men smoke and drink, and some men go out to socialize desperately for their careers and don't take their bodies seriously, which can easily lead to the erosion of men's health. In particular, men's indiscriminate use of drugs in the case of weak resistance is more likely to affect life expectancy. Women, on the other hand, pay more attention to their own health, and also pay great attention to health preservation in their daily lives. In addition, they seldom smoke and drink, so it is understandable that women live longer.
Third, differences in personality.
Personality differences between men and women actually affect life expectancy. For example, many women like to tell their worries to the outside world, which makes them more extroverted, because they release their repressed emotions while pouring bitter water. However, many men are not like this. They are often more willing to bear the pressure and anxiety from society and family alone, but they are more reticent, so it is easy to shorten their life span because of depression.