Why struggle to get up in morning?

为什么早晨不想起床?

Wèishénme zǎochén bùxiǎng qǐchuáng?

我们大部分人都喜欢在周末睡个懒觉,但是对于一些人来说,每天早上最受折磨的就是挣扎着从床上爬起来.现在,研究人员认为他们找到了原因,就是因为他们的生物钟被设置得太慢了.

Most of us love a good lie-in on the weekends. But for some people, getting out of bed each morning is a daily struggle that can disrupt their lives. Now, researchers believe they have found out why some people struggle to sleep at night and reach for the snooze button in the morning - their body clocks are set too slow.

澳大利亚阿德莱德弗林德斯大学的一个研究小组调查研究了睡眠期失调遭推迟,其特征就是迟迟无法入睡无法按时醒来.此项研究的牵头人利昂•兰克说,初步的研究结果表明身体内部时钟失调相对平均时钟慢了一些.晚睡的人到了凌晨两三点才睡,有些晚睡的人甚至到了凌晨四点才睡,对于他们而言很难保证第二天按时起床.

A team from Flinders University in Adelaide, Australia is investigating delayed sleep phase disorder, which is characterized by a persistent inability to fall asleep and wake at a conventional time. Study leader, Professor Leon Lack, said initial results showed that the internal body clocks, of those with the disorder ran slower than average. Late sleepers can't get to sleep until 2am or 3am at the earliest, or in some cases as late as 4am, which makes it very hard for them to get up for their commitments the next day.

"我们已经调查研究了是什么原因导致总有晚睡的人,其中一个貌似合理的解释就是他们的生物钟长于24小时."

"We've been investigating what causes people to be late sleepers and one of the most plausible explanations we're perusing is that their body clocks run longer than 24 hours."

生理节奏受我们身体内部生物钟的生活和日常规律支配.它们影响睡眠和清醒周期、体温以及荷尔蒙的释放.并受环境因素影响,例如光亮度、飞行时差、晚班工作.

Circadian rhythms are followed by most living things and follow a daily cycle that are governed by our internal body clocks. They influence sleep and wake cycles, body temperature and the release of hormones. They can be affected by environmental factors, such as light levels, and so disrupted by flying across time zones and working night shifts.

大部分人的时钟是24小时,但对于晚睡的人而言,自然节奏影响了睡意和体温,睡眠期失调遭推迟要花很长时间才能完成这个周期,因此他们倾向晚睡晚起.　　

Most people have a 24-hour body clock, it's a natural rhythm that influences sleepiness and core body temperature but for people with delayed sleep phase disorder it takes longer to complete the cycle so they tend to go to bed later and wake up later.

如果我们所期望的结果能成立的话,那么找到加强疗法是会有帮助作用的,例如明光疗法来引导早上清醒,褪黑素有助于晚上早睡,他说.

"If we establish what we're expecting to find it will reinforce therapies that we know can help, such as bright light therapy to induce alertness in the mornings and melatonin to encourage earlier evening sleepiness," he said.

词语解释：

懒觉 （lǎnjiào） lie-in

挣扎 （zhēngzhá） struggle

 生物钟 （shēngwù zhōng） Body clock

合理的 （hélǐ de） plausible

节奏 （jié zòu） rhythm

(Source: myechinese.com)