London: Kissing is considered a symbol oflove and affection, but scientists claim it may have evolvedfor reasons less fascinating and more practical. The scientists believe kissing is developed to pass on adangerous bug called cytomegalovirus from man to woman.
However, kissing the same person for about six monthshelps the woman build up her immunity that minimises the riskof birth defects, Hendrie said in his writing in MedicalHypotheses journal. As the relationships progresses and the kisses becomemore passionate, huge amount of virus passes to the woman,helping her build up her immunity. "By the time she becomes pregnant, the odds of herunborn baby becoming infected are much lower," Hendrie added. Earlier, scientists have claimed that kissing acts asa form of evolutionary quality control, with saliva holdingclues to fertility, health and genes.Bureau Report
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