晚上睡覺開燈太亮竟會導致抑鬱症?
People who sleep with the lights on are more at risk of depression because the brightness can cause poor sleep quality and disrupt the "biological clock," a multiyear study showed.
一項多年的研究顯示，睡覺開着燈的人更容易患抑鬱症，因爲亮度會使睡眠質量變差，擾亂“生物鐘”。
A research team of the Nara Medical University said such disturbances in body rhythm can lead to mental disorders, such as depression.
奈良醫科大學的一個研究團隊稱，這種對身體節奏的干擾可導致精神障礙，例如抑鬱症。
The team conducted the study on 863 men and women aged 60 or older from areas that included Asuka and Kashiba in Nara Prefecture.
這個團隊對863名年齡在60歲及以上、來自包括飛鳥和香芝在內的奈良縣各個地區的男男女女進行了研究。
The team set up sensors in the bedrooms of the 863 subjects between 2010 and 2014 to measure the light intensity from the time when they tucked into their beds or futon to the time they woke up.
該團隊在2010年至2014年期間，在這863人的臥室裏安裝了傳感器，測量從他們上牀睡覺到睡醒這段時間內的燈光強度。
The subjects were each monitored for about two years for follow-up surveys regarding symptoms of depression.
爲了關於抑鬱症症狀的跟蹤調查，這些人被監測了約兩年的時間。
According to the results, symptoms of depression were found in 52, or around 7.3 percent, of the 710 participants who slept in relative darkness with a median light intensity of just 0.4 lux.
結果顯示，在相對黑暗的環境中（燈光平均亮度僅爲0.4勒克斯）睡覺的710名參與者中，其中52人，也就是約7.3%，被發現有抑鬱症症狀，
Among the 153 participants who were exposed to brighter light with median intensity of 12.4 lux, 21, or 13.7 percent, showed such symptoms.
而在更明亮的環境中（平均強度爲12.4勒克斯）睡覺的153名參與者中，則有21人，也就是13.7%，有此類症狀。
