Among humans more boys are born than girls, but women have significantly higher life expectancies. what is the significance of this

We can answer this by asking firts Why do women live more than men? One of the significance is that death rates are higher for males than for females (e. g men die young because of accidents, suicide and homicide more than women). Another aspects is that even women suffer from more deseases, it seems that they could "deal" with them but men are killed rapidly beacuse of those deseases. there are many but I mentioned a few

Life expectancy is a statistical measure of the average time an organism is expected to live. Higher life expectancy in women than guys would mean that women are expected to live longer. This is important to know to determine what affects this and narrow the investigation.