According to the United Nations, more men than women live on earth today. Of the 7.4 billion people, over 60 million more are male than female (as of March 2017). The main cause of this imbalance is the numerically unequal ratio of the sexes at birth: about 100 newborn girls have about 105 boys. But favoring the birth of a boy in less developed countries could also have led to this imbalance.
Gender-specific age expectancy
However, as we age, the gender ratio changes within the age groups. Because men die faster than women because of their lower life expectancy. In an "older" population with a relatively high proportion of old people - such as in the populations of European countries and the USA - there are more women than men.
In a population with lower life expectancy and, more significantly, higher fertility, the proportion of young age groups is significantly higher. Young people form the broad base of the population pyramid in many developing countries. In these young age groups, there are more boys than girls and therefore more men than women overall.
Women "missing" - impact of discrimination
Discrimination against girls and women leads to a serious mismatch between the number of men and women in some regions of the world. In Asia, for example, there is a clear male surplus. For example, in India statistically, there are 102 male births per 100 female births.
The birth of a girl is still considered a burden by many Indian families, especially because parents traditionally pay a dowry when marrying their daughter. Many parents, therefore, prefer to break off a pregnancy than to get a girl. In addition, girls are given poorer nutrition and medical care than their brothers.