还有一些研究表明夜班与胃癌和肠癌也有关系——可能因为夜班工人吃得比较不健康而且锻炼的也不够造成的。
Other studies have suggested a link with bowel cancer and gastric problems - possibly because night workers tend not to eat so healthily and to exercise less.
研究报告的主要撰写人丽娜·k·库夫·斯尔塔解释说，这主要是因为养宠物的人大多是中年人，他们受到的教育较少，而且处在健康比较容易出问题的年龄段。
This was largely because pet owners tended to be middle-aged, have less education and more health-risk factors, explained Dr.Leena K.Koivusilta, the study's lead author.
研究人员将她们和其它女性进行了比较，努力想要确定是否是因为中年饮酒的关系，换来了这份健康。
They compared them to the other women and tried to determine whether those who drank in midlife -- they tended to drink wine -- did any better health-wise.
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