Georgia State University researchers reported:-
They believe sex works by boosting the ‘cuddle’ hormone oxytocin that can reduce stress.
The study published in the journal Sexual Medicine saw volunteers have sex while wearing a heart monitor.
They also rated orgasm intensity , rating it from 66 to 106 , with an average of 87. Those involved had an average systolic blood pressure of 115mmHg at the start of the tests. After sex , it fell by up to 17mmHg.