Just one can of fizzy drink a day is linked to more aggressive behaviour by teenagers, claim researchers.
A new study found youngsters were significantly more likely to be violent and carry weapons if they regularly consumed fizzy soft drinks.
The study showed those having more than five cans of non-diet carbonated drinks a week were more likely to get involved in violent assaults.
The latest findings, reported online in the journal Injury Prevention, come from a survey of 1,878 teenagers aged 14 to 18 from 22 state schools in Boston.
They were asked how many cans of non-diet fizzy soft drinks they had consumed over the past week.
Up to four cans was considered "low", and five or more was classified as "high".
Just under one in three pupils fell into the "high" category, some drinking more than two or three cans a day.
Youngsters were asked if they had been violent towards their peers, a brother or sister, or a partner, and whether they had carried a gun or knife in the past year.
Overall, frequent soft drink consumption was associated with a 9 percent to 15 percent increased likelihood of engaging in aggressive behaviour.
The researchers, led by Dr Sara Solnick from the University of Vermont, said "There was a significant and strong association between soft drinks and violence. "

据英国《每日邮报》10月24日报道，研究人员称，年轻人一天一罐汽水，易致言行暴力。

一项新研究发现，青少年如果定期饮用碳酸饮料，则更可能具有暴力倾向和携带武器。

该研究显示， 那些在一周之内饮用超过5罐含糖碳酸饮料的青少年更易参与暴力袭击。

这些最新的发现源自一项对1878名年龄在14—18岁之间的青少年的调查。这些孩子均来自波士顿的22所公立学校。该项结果发表在《伤害预防》网站上。

研究调查了孩子们在上一周内饮用的含糖碳酸饮料罐数。

饮用4罐和4罐以内被认为是“较低”，5罐或5罐以上则被定义为“较高”。
仅有不到三分之一的学生被划分到“较高”一类，有的学生每天饮用超过2罐或3罐碳酸饮料。

青少年们被问及是否曾经对他们的同龄人、兄弟姐妹或者同伴施加过暴力行为，以及是否在去年有过携带枪支或匕首的记录。

总而言之，频繁的饮用软饮料与从事暴力行径的可能性之间的联系增加了9%—15%。

该研究的负责人——佛蒙特大学的萨拉索尔尼克博士说：“饮用软饮料和暴力行为之间有着显著而密切的联系。”