這個周末睡個懶覺——你可能會活得更長

這個周末睡個懶覺——你可能會活得更長

Your pets may be pestering you to get up and feed them, and your spouse may want you to get started on that do list, but tell them you're sleeping in this weekend. Science says it may help you live longer, especially if you don't get enough rest during the week.

你的寵物可能會纏著你起床喂它們，而你的配偶可能想讓你開始著手必做清單，但告訴他們你這個周末要睡覺了。科學(xué)表明，這可能會幫助你活得更久，特別是如果你在一周內(nèi)沒有得到足夠休息的時候。

Scientists have long known about the connection between how much you sleep and how long you live. Lack of sleep can have dire consequences for your health. It can give you heart problems or hurt your waistline, and it can leave you anxious and depressed. But sleeping too much can be just as bad for your health, studies have found.

科學(xué)家們早就知道睡眠時間和壽命之間的關(guān)系。睡眠不足會對你的健康造成可怕的后果。它會給你帶來心臟問題或腰部受傷，還會讓你焦慮和抑郁。但研究發(fā)現(xiàn)，睡得太多也會對你的健康有害。

However, research has often overlooked what happens on your days off, said sleep researcher Torbjörn Åkerstedt, co-author of a study published in the Journal of Sleep Research.

然而，發(fā)表在《睡眠研究雜志》上一項研究報告的合著者、睡眠研究人員托比約恩·阿克斯泰特說，研究往往忽略了你休息時的情況。

He was "quite surprised" by what researchers found when they focused on that block of time.

他對研究人員在這段時間內(nèi)的發(fā)現(xiàn)“相當(dāng)驚訝”。

"Apparently, sleeping in on the weekends can be a real help," said Åkerstedt, a professor and director of the Stress Research Institute at Stockholm University.

斯德哥爾摩大學(xué)壓力研究所教授兼所長阿克斯泰特說:“顯然，周末睡懶覺會有很大幫助。”

The study looked at 43,880 people in Sweden, asking them about their sleep habits and following up 13 years later. It found that people who regularly slept about five hours or less a night, including on weekends, saw a higher mortality rate, compared with those who regularly got seven hours. People who slept too much, regularly conking out for eight hours or longer a night, also had a worse mortality rate.

這項研究調(diào)查了瑞典的43880人，詢問他們的睡眠習(xí)慣，并在13年后進(jìn)行了跟蹤調(diào)查。研究發(fā)現(xiàn)，與定期睡7小時的人相比，每晚睡眠不足5小時的人(包括周末)的死亡率更高。睡眠過多的人，每晚經(jīng)?；杷?小時或更長時間的人，死亡率也更低。

But when the short sleepers slept in on the weekends, their mortality rate did not differ from that of the consistent seven-hour-a-night sleepers. That was true only for those under 65; the mortality difference disappeared for people who were older.

但當(dāng)短睡眠者在周末睡懶覺時，他們的死亡率與堅持每晚7小時睡眠的人沒有什么不同。這只適用于65歲以下的人群;年齡再大些時死亡率差異消失了。

Åkerstedt notes that seven hours is not a hard and fast rule; some people might need more and others less.

阿克斯泰特指出，7小時并不是硬性規(guī)定;有些人可能需要更多，有些人則需要更少。

The study has its limitations, as participants were asked to recall their sleep patterns rather than being observed sleeping, but Åkerstedt has an idea about what might be driving this difference in mortality.

這項研究有其局限性，因為參與者被要求回憶他們的睡眠模式，而不是被觀察睡覺，但阿克斯泰特對造成死亡率差異的原因有一個想法。

It's not so much about being able to store up sleep, but he thinks short sleepers who are changing their habits on the weekends are making up for some of what they lost during the week.

這并不是說能夠儲存睡眠，但他認(rèn)為在周末改變習(xí)慣的短睡眠者正在彌補他們在一周中失去的一些東西。

Sleep is something you need to replenish regularly if you don't want to hurt your health. "It's a fundamental part of our biology, like breathing. It's a requirement," said Grandner, director of the Sleep and Health Research Program and an assistant professor in the Department of Psychiatry in the University of Arizona College of Medicine - Tucson. He was not involved in the new study.

如果你不想傷害你的健康，你需要定期補充睡眠。“這是我們生物學(xué)的基本組成部分，就像呼吸一樣。睡眠與健康研究項目主任、亞利桑那大學(xué)圖森醫(yī)學(xué)院精神病學(xué)系助理教授格蘭德納說:“這是一項必要條件。他沒有參與這項新研究。

"What happens is, if you are well-rested, your sleep drive will be low in the morning, and it builds and builds over the day, when at night you need to go to bed to relieve that pressure for sleep. If you don't get enough sleep, you wake up with that sleep pressure and start the day with a higher need for it.

“如果你休息得很好，你的睡眠驅(qū)動力在早上會很低，它在一天中不斷積累，晚上你需要睡覺來緩解睡眠壓力。如果你沒有得到足夠的睡眠，你醒來時就會有這種睡眠壓力，并新的一天對睡眠有更高的需求。”

"It's like with your diet. If you eat OK during the week and you splurge a little on the weekend, you probably aren't hurting your health, but if you eat crap all week, no amount of vegetables that you eat on the weekends can make up for that," he said.

“就像你的飲食一樣。如果你在工作日吃得還不錯，在周末稍微揮霍一下，你可能不會對你的健康造成傷害，但如果你整個星期都在吃垃圾食品，周末吃多少蔬菜都無法彌補這一點，”他說。