Security Is Bad News For Women's Sex Drive

According to new research in Germany, a woman's sex drive begins to plummet once she is in a secure relationship.

The researchers from Hamburg-Eppendorf University found that four years into a relationship, less than half of 30-year-old women wanted regular sex. Conversely, the team found a man's libido remained the same regardless of how long he had been in a relationship.

They interviewed 530 men and women about their relationships for the study and found 60% of 30-year-old women wanted sex "often" at the beginning of a relationship, but within four years of the relationship this figure fell to under 50%, and after 20 years it dropped to about 20%.

In contrast, they found the proportion of men wanting regular sex remained at between 60-80%, regardless of how long they had been in a relationship.

Dr Dietrich Klusmann, lead author of the study, believes the differences were down to human evolution. "Women, he said, have evolved to have a high sex drive when they are initially in a relationship in order to form a "pair bond" with their partner. But, once this bond is sealed a woman's sexual appetite declines", he said.

Whereas a professor from Buckinghamshire Chilterns University College, provides this explanation: "The rational for why a woman's sex drive declines may be down to supply and demand. If something is in infinite supply, the perceived value would drop".

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