Why mothers in a cold climate are more likely to have boys

[دانه کولانه]

Why mothers in a cold climate are more likely to have boys

Women living in cooler climates are more likely to give birth to boys than those in the tropics, a study has shown.
Researchers claim to have found a link between the climate and latitude of a country and the proportion of boys born there.

On average, for every 100 newborn girls born in the world, there are 105 boys.

Cold climates may lead to mothers giving birth to more boys than girls, suggests research