1The article entitled Eating Iron in last months issue of Eating for Health reported that a recent study found a correlation between high levels of iron in the diet and an increased risk of heart disease. Further, it is well established that there is a link between large amounts of red meat in the diet and heart disease, and red meat is high in iron. On the basis of the study and the well-established link between red meat and heart disease, we can conclude that the correlation between high iron levels and heart disease, then, is most probably a function of the correlation between red meat and heart disease.
2The following appeared as a letter to the editor of a national newspaper.
Your recent article on corporate downsizing in the United States is misleading. The article gives the mistaken impression that many competent workers who lost jobs as a result of downsizing face serious economic hardship, often for years, before finding other suitable employment. But this impression is contradicted by a recent report on the United States economy, which found that since 1992 far more jobs have been created than have been eliminated. The report also demonstrates that many of those who lost their jobs have found new employment. Two-thirds of the newly created jobs have been in industries that tend to pay above-average wages, and the vast majority of these jobs are full-time.
Downsizing is the process in which corporations deliberately reduce the number of their employees.
3According to a poll of 200 charitable organizations, donations of money to nonprofit groups increased by nearly 25 percent last year, though not all charities gained equally. Religious groups gained the most , followed by environmental groups , whereas educational institutions experienced only a very small increase in donations . This poll indicates that more people are willing and able to give money to charities but that funding for education is not a priority for most people. These differences in donation rates must result from the perception that educational institutions are less in need of donations than are other kinds of institutions.
4A new study collected data that shows that people who snore are more likely to gain weight than are people who do not snore. It is well known that many people who snore also stop breathing frequently during the night for a few seconds, a condition called sleep apnea. The interruption of breathing wakes the person ― often so briefly that the waking goes unnoticed ― and can leave the person too tired during the day to exercise. Anyone who snores, therefore, should try to eat less than the average person and to exercise more.
5The following appeared in the editorial section of a local newspaper.
The librarians in our towns school system have reported that the number of trips that our students make to their school library on a voluntary basis has decreased significantly in recent years. For example, the average seventh-grade student visited the school library five times last year, but four of those visits were part of required classroom activities. This shows that our students are reading less than in the past. To address this problem, our town needs to improve the atmosphere of the libraries so that they will be comfortable places in which to work. If students view the libraries as uncomfortable, then they are unlikely to want to spend much time there.
1上一期的《健康饮食》杂志上刊登的题为《食铁》的文章报导说最近一项研究发现饮食中铁的含量过高与心脏病发病率增加有关联。而且，我们已经知道饮食中大量的牛羊肉和心脏病是有联系的，牛羊肉中铁的含量很高。基于以上研究和牛羊肉与心脏病之间的已知联系，我们可以得出结论，高铁含量与心脏病之间的关联最有可能是牛羊肉与心脏病之间关联的作用。
2你们最近关于美国集体裁员的文章是有误导性的。该文章给人们一种错误的印象，即很多在企业面临严重经济困难的时候裁员而导致失业的有能力的工人通常要用几年的时间找到另一份合适的工作。但这种感觉与最近一次关于美国经济的报告相矛盾，报告发现自1992年以来新增的就业机会数量远超过消失的岗位数量。该报告也指出很多失业人员已经找到了新工作。新增就业机会中有三分之二是那些提供高于平均水平薪酬的企业提供的，而且这些岗位绝大多数是全职工作。
3根据一项针对200个慈善组织的调查，去年对于非营利团体的捐款上升了将近25%，而并不是所有组织都获得了同样的增幅。宗教团体增幅最大(30%)，其次为环境组织(23%)，而教育机构所获捐款仅有少量增长(3%)。这一调查说明有的人愿意而且有能力为慈善组织捐款，但资助教育并不是大多数人的首选。这种捐款比率上的差异一定是由于人们认为教育机构没有其他组织更需要资助的观念而导致的。
4一项新的调查所收集的数据显示打呼噜的人比不打呼噜的人更容易长胖。我们知道很多打呼噜的人夜间也经常有数秒钟的呼吸停顿，这种现象被称为睡眠呼吸中断。这种呼吸的停顿导致本人醒来通常十分短暂以至于不被察觉并且会使本人在白天很累而无力锻炼。因此，所有打呼噜的人都应该比正常人少吃多锻炼。
5我市学校系统的图书馆管理员报告说近年来我们的学生主动去学校图书馆的次数显著下降。举例来说，去年7年级学生平均去图书馆5次，但其中有4次是教学活动所要求的。这表明我们的学生读书比以前少了。为解决这一问题，我市需要改善图书馆的环境使他们适于工作。如果学生认为图书馆不舒服，他们将不太可能想在这里花很多时间。