A new study has revealed that altruists have more sex than their non-altruists’ counterparts.
According to Huffington Post, previous research found that altruists are more attractive. Lead researcher for the new study, Steven Arnocky said this study is the first to show a real mating success translation to that statement.
Researchers used data from two studies, first one of 192 unmarried women and 105 unmarried men between the ages of 16 and 33.
The participants had to fill out a questionnaire, detailing their sexual histories, current sexual activities and altruistic activities.
The accuracy of their altruistic activities had to be indicated by stating precisely what the acts were such as “I have helped push a stranger’s car out of the snow” and “I have donated blood.”
The study also found men who frequently acted in altruistic ways had more lifetime sex partners and more casual hook-ups.
Researchers believe that men use altruistic behaviours to attract partners for short-term sex.
Second study of 335 female and 189 male college students was structured same way as the first one but the students were entered into a competition and asked whether they planned to keep the money of donate a portion to charity, should they win.
“Participants who were willing to donate potential monetary winnings reported having more lifetime sex partners, more casual sex partners, and more sex partners over the past year,” the researchers reported.
“Men who were willing to donate also reported having more lifetime dating partners.”
Why is altruistic behaviour attractive?
Researchers argue that altruistic behaviour is what biologists call a “costly signal” — an activity that requires some exertion, but also advertises one’s attractive qualities to potential mates.
However, researchers asserted that there is ‘no evidence’ that people are conscious of this equation, nor that it’s the only dynamic that encourages altruistic behaviour.
“But from an evolutionary standpoint, our ‘selfish genes’need a well-functioning society if they are to survive and thrive. It makes sense that a behavior that helps sustain this positive social environment would, over the course of natural selection, get rewarded.”
The study was published in the British Journal of Psychology.