Homosexual men may be born to be 'tops' or 'bottoms', scientists claim

Researchers from the University of Toronto put gay sex stereotypes to the test in the hope of understanding whether there was a biological component to sex roles


Researchers surveyed gay men, and found that 'bottoms' were more likely to be left-handed and have older brothers, while 'tops' were more likely to be right-handed and have younger sisters

The divide between dominant and passive sex roles has long been debated, especially within the gay community.

Now, a new study suggests that there could be a genetic component to what makes a gay man a 'top' or 'bottom' in anal sex.

Stereotypically, 'tops' are seen as masculine, taking up the male tradition of dominance during sex, while 'bottoms' are seen as more feminine, taking a more passive role.

Researchers from the University of Toronto put these stereotypes to the test in the hope of understanding whether there was a biological component to sex roles.

The results showed that bottoms identified as being less gender-conforming, were more likely to be left-handed and have more older brothers.

In contrast, tops identified as being more gender-conforming, and were more likely to be right-handed with younger sisters.


In particular, the researchers say that the differences between right and left handed men are particularly useful. Hand preference is evident very early on in life, and is not usually affected by social or cultural factors

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