Caesarean births 'affecting human evolution'

[silently_said]

Caesarean births 'affecting human evolution'

The regular use of Caesarean sections is having an impact on human evolution, say scientists.

www.bbc.com

The regular use of Caesarean sections is having an impact on human evolution, say scientists.

More mothers now need surgery to deliver a baby due to their narrow pelvis size, according to a study.

Researchers estimate cases where the baby cannot fit down the birth canal have increased from 30 in 1,000 in the 1960s to 36 in 1,000 births today.

Historically, these genes would not have been passed from mother to child as both would have died in labour.

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