In the journal Science, Sarah Moore and Dr Ken Wilson, of Stirling University, report that one reason is that men are more susceptible to infections--from bacteria and viruses to fleas, worms and mites.

• 斯特林大学的萨拉·穆尔和肯·威尔逊博士在《科学》周刊上撰文说，原因之一是，男子更容易受到细菌、病毒、跳蚤、蠕虫和螨虫的感染。