The researchers, whose findings are published in the journal Microbiome, found that couples who share nine intimate kisses a day had a very similar microbiota, which can enable them to better fight disease.
Scientists have warned that obsession with hygiene and cleanliness has driven a boom in allergies and health problems.
Professor Graham Rook, an immunologist at University College London, has gone so far as to say that picking food off the floor, keeping a dog and regularly kissing your relatives are some of the best ways to ward off allergies.
发表在《微生物》杂志上的该项研究结果指出,每天热吻9次的情侣间存在非常相似的微生物群,这能帮助双方更好地抵御疾病。
科学家们告诫人们,过度“洁癖”正是导致过敏等诸多健康问题的主要原因。
伦敦大学学院的免疫学家格雷厄姆·鲁克教授甚至表示,想要避免过敏,可以把掉到地上的食物捡起来照吃不误、或者可以养狗、经常跟伴侣接吻等。