人们常说休息分为积极休息和消极休息。前者是以“动”为主,如散步、聊天、看电视等;后者是以“静” 为主,如睡眠、静坐等。提到主动休息,多数人会感到陌生,不解其意。其实,主动休息井不神秘,不少人经常在做。所谓主动休息,就是提前休息,即在没有感到疲劳之前就休息,而不是感到累了才休息。提前休息有必要吗?科学家们已经为此做过专门试验:让一组身强力壮的青年搬运工人往货轮上装生铁。如果拼命连续于4个小时,只能勉强地装12.5吨,而且大家都感到精疲力尽;但 People often say that breaks are divided into active and negative breaks. The former is based on “move ”, such as walking, chatting, watching TV; the latter is “static ” based, such as sleep, meditation and so on. When it comes to take the initiative to rest, most people will feel strange, puzzled. In fact, the initiative to rest well is not mysterious, many people are often doing. The so-called active rest, that is, early rest, that is, before you feel tired to rest, rather than feel tired before taking a break. Is it necessary to take early rest? Scientists have done a special experiment to this end: a group of capable young porters loaded with pig iron on cargo ships. If we desperately continue for 4 hours, we can only barely put in 12.5 tons and everyone is exhausted; but