简介:Wespendaboutone-thirdofourlivesasleep.Thismaysoundlikealotoftime,butitisnotwasted.我们一生中有三分之一的时间在睡觉,这听起来可能是很多时间,但是这些时间并没有浪费。Ourbodiesneedsleeptostayhealthy.Notgettingenoughsleep,oraswesometimessayshut-eye,canmakeussick.我们的身体需要睡眠才能保持健康。缺乏充足的睡眠会让我们生病。
简介:Ithasbeenknownforsometimethatstraininjuriesoccurthroughtheexcessivelengtheningofamuscle.~(1–3)However,theprecisemechanismforstraininjuryremainselusiveandhasbeenthesubjectofrecentdebateintheJournalofSportandHealthScience,~(4–9)butitseemssensibletoconsidermechanismsatthelevelofthemusclefiber.Itwaspreviouslybelievedthatdamagewastheresultofnon-uniformstretchingofsarcomeres