It's not your imagination – more boys are being born than girls and here's why


Baby Archie, Amy Schumer’s son Gene, Kim Kardashian West’s little boy, a son for Gordon Ramsay – 2019 has been a bumper year for baby boys.

Perhaps you’ve also noticed the boy:girl ratio at your little one’s nursery, or in the playground, or when swimming.

If you’ve begun to suspect that the boys are outnumbering the girls…well, you’re not wrong.

Cast your mind back to Biology lessons, you may recall that the dad determines the sex of an unborn baby, because sperm carries an X and Y chromosome. One of these will combine with a mum’s X chromosome (of which she has two) to make either a girl or a boy.

Dad’s determine the baby’s sex

This means the chances of having either a boy or girl are pretty even. Yet there 105 boys births to 100 girls worldwide, Kidspot reports.

So what’s the behind this?

“Women with more resources and family connections and higher socioeconomic status are more likely to have boys,” says Dr Alison Behie, biological anthropologist at the Australian National University.

While this theory applies to privileged members of society such as celebrities and royals, where does it leave the rest of us?

Have you noticed the boy:girl ratio?

 

Well, apparently evolution has a say too.

“Because of the one X and one Y chromosome, boys are more susceptible to stress in utero and early infancy,” says Dr Behie.

What this means is we have evolved to have more boys as, sadly, some may not survive infancy.

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Newcastle University also conducted a study which showed that a man with many brothers is more likely to have a son – the royals are a perfect example of this.

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Going back a century, following the end of World War One, it was found that in the UK an extra two boys were born for every 100 girls compared to the year before the war started, resulting in a boy baby boom.

And boys have (slightly) dominated ever since.

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