A study of more than 400,000 people found 1% had never had sex – which was linked to a range of genetic, environmental and other factors.
Articles on human sexuality
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There is a great deal of nuance around how young women negotiate their intimate relationships with men.
Same-sex sexual behaviour presents a paradox: it’s influenced by genes, but how and why do these genes continue to be passed down the generations? One theory is they have reproductive benefits too.
Doctors hear many of the same basic questions about sex from their patients.
