Sexual Activity Tied to Genetics

A recent study by Cambridge University has revealed that a person’s DNA may determine when they lose their virginity.  For instance, if your genes make you ugly, you’re more likely to remain a virgin longer.  Surprisingly, the reverse is true if someone has genes that make them attractive.  Isn’t it incredible how genes work like that?

The study of 400,000 people looked at determined that it is 25% nature, and 75% nurture when it comes to when people decide to have sex for the first time.  Factors such as religious upbringing, economic status, and parental involvement can lead to earlier sexual activity.

However, that remaining 25% is where genetics comes in, and it plays a big role.  Children who hit puberty earlier in life, for example, are more likely to lose their virginity sooner (kind of obvious.)  Also, The genetic variant in CADM2 is associated with higher odds of risk-taking, earlier sex, and a greater number of children.

So there you have it!  I have no idea what this proves, or if it has anything to do with anything, but it’s kind of a cool fact.  There is the question, however, is this a genetic deficiency, or an advantage?  On one hand, becoming sexually active earlier makes more sense on a species-wide scale:  more offspring = continuation of the human race.  On the other hand, you get stuck with a bunch of kids.  Where do child support payments fit in the evolutionary scale?

http://www.wltx.com/news/health/genes-help-predict-when-we-lose-our-virginity/144947753

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