
Share
21st April 2016
01:12pm BST

The CADM2 crowd were also linked to having large numbers of children.
Weirdly, they found that women (but not men) with freckles and red hair were more likely to lose their virginity at an older age.
Essentially, the message here isn't that your genes determine when you first have sex, but rather have a clear effect on the impulsive behaviour that may lead to getting laid sooner rather than later.
And science is only one of the contributing factors. John Perry, an expert in reproductive ageing and related health conditions at Cambridge University, said that religious beliefs, family background and peer pressure are just as important to sexual behaviour.
He said: "We were able to calculate for the first time that there is a heritable component to age at first sex, and the heritability is about 25%, so one quarter nature, three quarters nurture.”Explore more on these topics: