(TELEGRAPH) — Women who smoke or lead a stressful life during their pregnancy can influence their child’s sexuality and IQ, a neuroscientist has claimed.

A pregnant woman’s lifestyle is believed to have an impact on the development of their babies – with drinking, taking drugs and even living in an area with a lot of pollution affecting children in later life.

Dick Swaab, professor of neurobiology at Amsterdam University, suggests drinking and taking drugs can lower a child’s IQ while taking synthetic hormones and smoking can increase the likelihood of girls being lesbians or bisexual.

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