Brother stops girl growing up

研究:家有兄弟女孩'慢熟'

They may pull their sister's pigtails and tease her mercilessly about her spots. But a girl's brothers also have a crucial effect on the woman she becomes, the Daily Mail of London reported. Girls with elder brothers go through puberty later, while those with younger brothers wait longer before having a sexual relationship, research shows.

作为兄弟，他们揪妹妹的小辫，嘲讽姐姐的痘痘。但是，他们更关键的作用是：决定自己的姐妹长成怎样的女人。据英国《每日邮报》报道，研究显示，有哥哥会使女孩的青春期推迟，而有弟弟会使她的性生活来得更晚。

*以上新闻由ChinaDaily双语手机报提供