Men should start a family before they turn 35 to avoid their children having birth defects or being born prematurely

Study tracking 40million babies found minor risk increase when fathers hit 30s
Published in the British Medical Journal, it showed slight decline in sperm quality
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By Ben Spencer, Medical Correspondent For The Daily Mail
Published: 19:30 EST, 31 October 2018 | Updated: 21:49 EST, 31 October 2018

Men should start a family before they age of 35 to avoid risk to their unborn babies, researchers claim.

A study tracking 40million babies found the risk of birth complications start to increase when fathers are in their mid-30s, and significantly rise from the age of 45.

For decades women have been told they will put their children at risk if they pursue a career first and leave it until they are older to have a family.

But the new study, published in the British Medical Journal, shows men should also take responsibility...