研究顯示 睡眠不足會(huì)讓人易怒

Losing just two hours of sleep a night makes people angrier, research reveals.

研究顯示，每晚少睡兩個(gè)小時(shí)會(huì)讓人更易怒。

The study is among the first to prove a direct link with lack of shuteye, experts say.

專家稱，這是首個(gè)證明生氣和睡眠不足有直接聯(lián)系的研究。

Previous research shows sleep loss increases negative emotions, such as anxiety and sadness, and decreases positive emotions, including happiness and enthusiasm.

之前的研究表明，睡眠不足會(huì)增加消極情緒，如焦慮和悲傷，減少積極情緒，包括幸福和熱情。

But researchers at Iowa State University found losing sleep raised anger directly -- not just as a result of feeling more negative. Their findings were published in the Journal of Experimental Psychology.

但愛荷華州立大學(xué)的研究人員發(fā)現(xiàn)，睡眠不足會(huì)直接引發(fā)憤怒，而不僅僅是感覺更消極。他們的研究結(jié)果發(fā)表在《實(shí)驗(yàn)心理學(xué)雜志》上。

Participants were split into two groups. One kept to their normal sleep routine while the other had theirs cut by two to four hours each night for two nights.

參與實(shí)驗(yàn)者被分成兩組。一組保持正常的睡眠習(xí)慣，另一組連續(xù)兩晚每晚減少兩到四個(gè)小時(shí)的睡眠時(shí)間。

The first group had almost seven hours of sleep a night, while the restricted group got about four and a half hours.

第一組每晚差不多睡7個(gè)小時(shí)，而限制睡眠組每晚睡大約4個(gè)半小時(shí)。

The difference was designed to reflect what people regularly experience in everyday life.

設(shè)計(jì)這種差異是為了反映人們?cè)谌粘Ｉ钪薪?jīng)常經(jīng)歷的情況。

Both groups were then asked to rate different products while listening to irritating noise. There searchers said this was meant to create uncomfortable conditions and provoke feelings of anger.

兩組參與者被要求在聽惱人的噪音的同時(shí)給不同產(chǎn)品評(píng)分。研究人員稱，這樣做是為了營(yíng)造不舒服的環(huán)境，激起憤怒的情緒。

Study leader professor Zlatan Krizan said: "In general, anger was substantially higher for those who were sleep restricted."

研究負(fù)責(zé)人茲拉坦·克里薩教授表示：“總的來(lái)說(shuō)，那些睡眠不足的人的憤怒情緒要高得多。”

"We manipulated how annoying the noise was during the task and, as expected, people reported more anger when the noise was more unpleasant. When sleep was restricted, people reported even more anger, regardless of the noise."

“我們對(duì)實(shí)驗(yàn)過(guò)程中噪音的干擾程度進(jìn)行了調(diào)控，結(jié)果不出所料，當(dāng)噪音更惱人時(shí)，人們會(huì)表現(xiàn)得更憤怒。當(dāng)睡眠不足時(shí)，不管是否有噪音，人們會(huì)表現(xiàn)得更憤怒。”