Astateofphysicalandmentalhealthallowsyoutotakepartinexercisecomfortablyandenjoyablysothatitdoesn'thurt,sothatyoucanlookforwardit,andfeelgoodafterwards.(一种身心健康的状态让人们轻松愉快的参加体育锻炼而不致伤及身体,人们因此乐于锻炼,锻炼之后能够开心至极,感觉良好)ifyouarefeelingdown,sportsmayhelppickyouup.onereviewofpastsutdiesfoundthatlong-termexercise,especiallywhenitincludeslong-lasting,strenuoustrainingsessions,hasaboutasmuchoffaneffectondepressionaspsychotherapy.(如果情绪低落,锻炼能使你振作起来.一份回顾以前研究的报告发现:长期锻炼,尤其是那些持续时间长,强度高的训练,对于治疗抑郁症几乎同心理治疗法一样有效)Workingouthelpsyoudealwithstressinyourjob,relationshipsoranyareaoflife--possiblybecauseexerciseisaformofstressitselfandhelpsconditionyourbodytodealwithit.(锻炼能帮助人们调节工作,人际关系的压力,乃至生活的任何方面的压力,其原因也许在于锻炼本身就很紧张它能帮助调节身体来应付压力)Evenalittleerercisecanmakeyouthinklessanxiously.Studieshaveshownthatanyamountofexercise,formabrisk10-minutewalktoanintenseaerobiscorweightliftingsessionseemstodecreasefeelingsofanxiety.(即使少量的锻炼也能减轻人的焦虑感.研究表明;锻炼不论其量大小,10分钟的健步行走,剧烈的有氧健身操或举重,似乎都能减少焦虑感)Inseveralstudies,regularweighttrainingoraerobicexercisewasshowntoimprovethequalityanddurationofsleep.Naturally,thiscanmakeyoulessfatiguedandbeabletofunctionbetterduringtheday.(有规律的举重练习或有氧锻炼能改善睡眠质量,延长睡眠时间.这自然就会减少你的疲惫感,从而能在白天更好的工作)