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They might be harder to catch – and no doubt leave their mothersmore
exhausted – but children born to mums over 40 are healthierand brighter
than those of younger women。

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The offspring of older women are less likely to have accidentsor need
hospital care and more likely to have been vaccinatedearly, a study

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They will also develop a broader vocabulary from a young ageand achieve
higher scores in IQ tests in a range of measures up tothe age of five。


The research, to be presented today at The Royal College ofPaediatrics
and Child Health conference in Glasgow, is a rare pieceof good news for
the rising number of women who are delayingmotherhood。


Previous studies have highlighted the growing infertilityrates for older
women and the greater risk of them developingdiabetes and


But the latest research appears to show gains for oldermothers once they
have given birth, possibly due to their greaterexperience and maturity。


The number of mothers who gave birth over the age of 40increased from
15,000 in 2000 to 27,000 in 2010.

Older fathers have uglier children, researchers have claimed after
linking age to genetic mutations。

Researchers at the Institute of Child Health, UniversityCollege London
and Birkbeck College, London, said their findingsshowed older mothers
can make better parents。

The finding comes weeks after leading scientists reported children born
to men over the age of 45 run a higher risk of having autism and
psychiatric disorders。

Dr Alastair Sutcliffe, who worked on the study, said negativepublicity
surrounding the rise of older mothers was based on thephysical risks of
pregnancy and childbirth。

With age, sperm-producing cells do not copy a man’s DNA as effectively,
leading to genetic mutations。

He said: ‘We have clear evidence that there are more desirableoutcomes
for children of older mothers compared with younger ages.We can reassure
these older women that their children are probablybetter off.’

Martin Fielder, an anthropologist at Vienna University, told the Sunday
Times: ‘Every 16 years the mutation rate doubles. Other researchers
found 25 mutations per sperm in a 20-year-old, but at age 40 it is 65
mutations. By 56, it doubles again。

The Wellcome Foundation-funded study looked at 1,100 childrenborn to
women aged 40 and over, compared with 38,000 children bornto younger
women in Britain. The children’s ages ranged from ninemonths to five

‘The effect is very visible – someone born to a father of 22 is already
5-10 per cent more attractive than those with a 40-year-old father and
the difference grows with the age gap.’

The research also checked a number of outcomes linked toparenting
skills, including naming vocabulary, picture and shapesidentification
and developmental IQ using established Britishassessment scales. The
findings showed greater ability amongchildren born to older mothers once
social class was taken intoaccount。

In contrast, women pass on a maximum of 15 mutations to their baby,
regardless of age, according to the study published in the journal


Surveying a group of six men and six women, researchers showed them each
4,018 photographs of 18-20-year-old men and 4,416 of women the same age,
and asked to rate their attractiveness。


Those with older fathers were consistently rated less attractive。


However, the offspring of older men, though less attractive, are likely
to outlive their peers with younger fathers, it is claimed。


Professor Lee Smith, a geneticist at Edinburgh University, told the
Sunday Times other research found such children have longer telomeres –
the caps on the end of chromosomes – which are associated with longer


But the mounting research connecting parents’ age with autism is cause
for concern, experts warn。


Autism is an umbrella term for a range of developmental disorders that
have a lifelong effect on someone’s ability to interact socially and


In the UK, around one in 100 adults is thought to be affected by autism,
mostly men, caused by a combination of genetic and environmental


Researchers said men should be advised about the potential problems in
order to help their personal decision-making when it came to having
fathering children at older ages。


They warned that advancing paternal age posed a risk of ‘numerous public
health and societal problems’。


Among well-known older dads are Simon Cowell, 54, whose son was born
earlier this month, and comedian Frank Skinner whose first child was
born in 2012 when he was 55.






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