阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。注意：每个空格只填一个单词。
Aristotleoncewrotethat“happinessisastateofactivity”.Inotherwords’whetheryou’reSeekinglife-longsatisfactionorafewmomentsofgoodcheer’you’vegottomoveforward.We’veinterviewedtheexpertsandfoundfivestepstotaketowardasunnymood（心情）：
Overa30-yearperiod’UniversityofIllinoisresearchersaskednearly12000peoplehowincome’education’politicalparticipation’volunteeractivitiesandcloserelationshipsaffectedtheirhappiness.ReportedNewsweek’sSharonBegleyonthefindings’“Thehighestlevelsofhappinessarefoundwiththemoststableandsatisfyingrelationships.”
Singingaloud’talkingtoastranger’raisingyourhand:allmayincreaseafeelingofhappiness’accordingtoastudyfromWakeForestUniversity.Participants（参与者）followedthedevelopmentoftheirmoodsfortwoweeksandreportedfeelinghappierwhentheyweremoreoutgoingandlesshappywhenreservedorwithdrawn.
Theeditorsofforbes.comgave$5or$20to46strangersbychance.Halfthegroupwastoldtospendthemoneyonthemselves’whiletheotherhalfwastoldtospenditonothers.Thosewho’dsharedthewealthfeltmuchhappierattheendofthedaythanthosewho’dspentitonthemselves.Therewasnodifferenceinhappinessbetweenthosewhospent$5or$20’suggestingthatit’snothowmuchmoneyyouspend’buthowyouspendit’thatinspiresthespirit.
StudiesfromthePositivePsychologyCentershowedthatdiscouragedpeoplewhowrotedownthreegoodthingsthathappenedtothemeachdayforsixmonthsreportedanimprovedattitude.
Drinkingwaterreallycanhelpkeepyoucheerful.Asmall2012studyfromtheUniversityofConnecticutsuggestedthatevenslightdehydration（脱水）affectedthemoodsofitsfemaleparticipants.
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