Those with older fathers were consistently considered less attractive.

　　However, the children 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(端粒)—the caps on the end of chromosomes(染色体)—which are associated with longer life.

　　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 communicate openly.

　　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 factors.

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

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

　　Among well­known older dads are Simon Cowell, 54, whose son was born earlier this month, and comedian Frank Skinner whose first child was born in 2017 when he was 55.

　　[语篇解读]　文章主要介绍了科学家的最新发现——年龄大的父亲生的孩子丑的可能性更大。

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