Any single woman who has ever felt frustration at the lack of available men might be surprised to know that it doesn’t start out that way. There are many factors that influence the determination of a child’s sex at conception, but statistically speaking, humans produce more boy babies born than girls by a margin of about 5%. But before accusing Mother Nature of gender bias, it should be pointed out that the numbers are evened out over time. Male babies are more likely to have health complications than females, and then as adults, factors such as risk-taking behavior and warfare combine to give men a shorter life expectancy. So, while there is a definite boom in boy babies, in the worldwide human population, the male to female ratio is nearly equal.
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