The term 'man-children' or man-child' is often thrown around, weather that is because a man in a relationship is a bit immature or doesn't know how to use the kitchen appliances.
According to Vice, this is more common in a heterosexual relationship, though it is not exclusive.
Other things that men do who are dubbed 'man-children' are as expected showing child-like traits.
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These apparently range from not doing the washing up and not emptying the bins when they are full to a rafter.
While this was just a loose term that has been thrown around for decades, there is actually a new study that discusses it.
The unusual study was published in the Archives of Sexual Behaviour journal, with researchers from universities in Canada and Australia contributing to it.
The study found that not only do 'man-children' exist, but their childish behaviour is destroying their partner's sex drive.
To begin the study, the researchers from across the universities look into the reason as to why so many women partnered with these so called 'man-children are reporting low sex drives.
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They found that if a woman was to perform more household chores than their partner, they would tend to see them as a dependent child rather than their partner.
From previous scientific research, we know that an increase in household chores reduces the sex drive for that given person.
The authors of the study have said until their research, the impact of 'man-children' on women's sexual desires had never been studied before.
Emily Harris, one of the study's co-authors told Vice that there’s a 'few unspoken assumptions' surrounding women's sex drive.
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She said: "One of these, is that low [sexual] desire is caused by individual factors, like hormones and stress, or general relationship factors, like conflict and dissatisfaction.
"What these assumptions miss, is the broader context of gender inequity."
Another co-author on the study Sari van Andres added: "It can feel more manageable to change your hormones, or try stress reduction techniques, than tackle structural inequalities."
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Vice spoke to a woman called Lianne who had claimed she was with 'man-child'.
Her experience seems to back up the claims made by the researchers and authors in the study.
She said: "Our sex drive completely died after six months of living together.
"I couldn’t take him seriously anymore and resented my role in our relationship. I felt like his mum."
Topics: Sex and Relationships