1ThearticleentitledEatingIroninlastmonthsissueofEatingforHealthreportedthatarecentstudyfoundacorrelationbetweenhighlevelsofironinthedietandanincreasedriskofheartdisease.Further,itiswellestablishedthatthereisalinkbetweenlargeamountsofredmeatinthedietandheartdisease,andredmeatishighiniron.Onthebasisofthestudyandthewell-establishedlinkbetweenredmeatandheartdisease,wecanconcludethatthecorrelationbetweenhighironlevelsandheartdisease,then,ismostprobablyafunctionofthecorrelationbetweenredmeatandheartdisease.
2Thefollowingappearedasalettertotheeditorofanationalnewspaper.
YourrecentarticleoncorporatedownsizingintheUnitedStatesismisleading.Thearticlegivesthemistakenimpressionthatmanycompetentworkerswholostjobsasaresultofdownsizingfaceseriouseconomichardship,oftenforyears,beforefindingothersuitableemployment.ButthisimpressioniscontradictedbyarecentreportontheUnitedStateseconomy,whichfoundthatsince1992farmorejobshavebeencreatedthanhavebeeneliminated.Thereportalsodemonstratesthatmanyofthosewholosttheirjobshavefoundnewemployment.Two-thirdsofthenewlycreatedjobshavebeeninindustriesthattendtopayabove-averagewages,andthevastmajorityofthesejobsarefull-time.
Downsizingistheprocessinwhichcorporationsdeliberatelyreducethenumberoftheiremployees.
3Accordingtoapollof200charitableorganizations,donationsofmoneytononprofitgroupsincreasedbynearly25percentlastyear,thoughnotallcharitiesgainedequally.Religiousgroupsgainedthemost,followedbyenvironmentalgroups,whereaseducationalinstitutionsexperiencedonlyaverysmallincreaseindonations.Thispollindicatesthatmorepeoplearewillingandabletogivemoneytocharitiesbutthatfundingforeducationisnotapriorityformostpeople.Thesedifferencesindonationratesmustresultfromtheperceptionthateducationalinstitutionsarelessinneedofdonationsthanareotherkindsofinstitutions.
4Anewstudycollecteddatathatshowsthatpeoplewhosnorearemorelikelytogainweightthanarepeoplewhodonotsnore.Itiswellknownthatmanypeoplewhosnorealsostopbreathingfrequentlyduringthenightforafewseconds,aconditioncalledsleepapnea.Theinterruptionofbreathingwakestheperson―oftensobrieflythatthewakinggoesunnoticed―andcanleavethepersontootiredduringthedaytoexercise.Anyonewhosnores,therefore,shouldtrytoeatlessthantheaveragepersonandtoexercisemore.
5Thefollowingappearedintheeditorialsectionofalocalnewspaper.
Thelibrariansinourtownsschoolsystemhavereportedthatthenumberoftripsthatourstudentsmaketotheirschoollibraryonavoluntarybasishasdecreasedsignificantlyinrecentyears.Forexample,theaverageseventh-gradestudentvisitedtheschoollibraryfivetimeslastyear,butfourofthosevisitswerepartofrequiredclassroomactivities.Thisshowsthatourstudentsarereadinglessthaninthepast.Toaddressthisproblem,ourtownneedstoimprovetheatmosphereofthelibrariessothattheywillbecomfortableplacesinwhichtowork.Ifstudentsviewthelibrariesasuncomfortable,thentheyareunlikelytowanttospendmuchtimethere.
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。