Genetic factors could potentially provide insights into why a small percentage of the population refrain from sexual activity.
In a pioneering study, researchers have explored the individual factors that contribute to sexlessness in both men and women. The study, headed by Laura Wesseldijk, Abdel Abdellaoui, Karin Verweij, and Brendan Zietsch, involved nearly 443,500 participants from the UK and around 13,500 from Australia.
The findings indicate a complex interplay of individual factors, with sexlessness being more prevalent in regions with higher income inequality in both countries. Notably, the study also discovered a link between sexlessness and the local ratio of men to women, with sexless individuals residing in areas with fewer women.
Men with lower grip strength and arm muscle mass were found to be less likely to have had sex, supporting the notion that physical factors play a role. Additionally, the study revealed a negative correlation between male strength and sexlessness.
The study also uncovered a genetic factor to sexlessness, with genetic analyses showing strong correlations with education, measured intelligence, higher income, and socioeconomic status. Conversely, sexlessness was negatively genetically correlated with drug and alcohol disorders, depression, anxiety, and ADHD.
The study found that genes accounted for 15% of the variation in whether individuals had had sex, suggesting a significant genetic influence. However, no individual genes with large effects were discovered; instead, many genes with tiny effects were present.
The study also emphasized the emotional and social implications of sexlessness. Individuals who have never had sex are less likely to have someone to confide in or to believe that life is meaningful. They also tend to use drugs and alcohol less, be more educated, and start wearing glasses from a younger age.
Sexless individuals often report feelings of nervousness, loneliness, and less happiness, and have fewer visits from friends and family. They may also face poor mental health, loneliness, social embarrassment, and economic disadvantages due to their inability to find suitable and willing partners.
The study represents a significant stride forward in understanding sexlessness, but more nuanced assessments are needed to disentangle cause and consequence. Future studies using advanced methods may help shed more light on this intriguing topic.
It's crucial to note that some people, often referred to as 'asexual', do not desire sex. These individuals were not the focus of this study, which looked at differences between mature adults who had never had sex and those who had.
In conclusion, the study offers valuable insights into the individual factors associated with sexlessness, providing a foundation for further research in this area. Understanding these factors can help improve interventions and support for those struggling with sexlessness.
