How having more frequent sex in your 40s can keep the menopause at bay
- If women have sex at least once a week in the years leading up to menopause, it can delay the onset
- A study looked at nearly 3,000 women aged 46 in the US, and those in intimate relationships entered menopause later
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Women approaching menopause who have frequent sex are less likely to cross that threshold than women of the same age who are not as active sexually, according to researchers.
On average, intimate relations at least once a week reduced the chances of entering menopause by 28 per cent compared to women who had sex less than once a month, they reported in the journal Royal Society Open Science.
The difference, the study suggests, reflects the body’s response to evolutionary pressures. “If a woman is having little or infrequent sex when approaching mid life, then the body will not be receiving the physical cues of a possible pregnancy,” Megan Arnot and Ruth Mace, scientists at University College London, wrote.
Post-menopausal killer whales – the only animals besides humans and pilot whales to go through menopause – are known to care for grandchildren, a behaviour sometimes called the “grandmother effect” that is thought to serve an evolutionary purpose.
Earlier research seeking to explain why married women reach menopause later than never-married or divorced women points to the influence of male pheromones, natural chemicals in the animal kingdom that attract the opposite sex.
To find out whether either theory held water, Arnot and Mace examined data on nearly 3,000 women in the US recruited in 1996 and 1997 to take part in a multidecade health study.
The average age of the women going into the study was 46. None had entered menopause, but just under half were “peri-menopausal”, with minor symptoms beginning to appear. During the following decade, 45 per cent of the women experienced a natural menopause, at an average age of 52.
Nearly 78 per cent of the women were married or in a relationship with a man, and 68 per cent lived with their partner.
The correlation between frequency of sex and onset of menopause was unmistakable, the researchers found. All the relationships reported were heterosexual, so it is not known whether same-sex activity would have a similar effect.
No link, however, was seen between the live-in presence of men and the subliminal chemical signals males might be emitting. “We found no evidence for the pheromone hypothesis,” they concluded.
There is considerable variation in the age of natural menopause across cultures, but genetic factors only account for about half of those differences, earlier research has shown.
