During a kiss, a total of 34 facial muscles and 112 postural muscles are being used, but a pucker kiss involves only two. It is a kind of fitness workout that both burns calories and requires significant muscular coordination.
Although the origin of the kiss remains a mystery, it may have originated when mothers orally passed chewed solid food to their infants during weaning. Another theory suggests kissing evolved from prospective mates sniffing each other’s pheromones for biological compatibility.
According to The Standard Digital News, the act of kissing, especially deep kissing, can give you cancer, a study carried out in Mombasa has shown. Find out more here.