 
事實上，嚴重的短期睡眠不足和輕微的長期睡眠不足有相似的即時後果。首先，饑餓荷爾蒙(腦腸肽)分泌增加; 飽足荷爾蒙(消瘦激素)分泌減少，這情況最快可以在兩晚「通宵」之後出現。這會刺激大腦去增加食量。當能量吸收多於能量消耗，身體便會製造脂肪，因此體重上升。其次，壓力荷爾蒙(皮質醇)分泌增加，影響脂肪分佈，從而導致中央肥胖。第三，胰島素分泌減少和葡萄糖不耐受會出現。後兩種改變會增加患二型糖尿病的風險。此外，睡眠不足還會其他很多生理上的影響。 不過，完整的睡眠補充有助改善嚴重的短期睡眠不足所造成的影響，至於長期睡眠不足引致的生理改變，則無法透過睡眠來作出任何逆轉。 但這並不表示睡得越多，就可防止痴肥；一般成年人睡八小時就很足夠，至於小孩則是十小時。除此以外，睡眠素質對生理狀況也有不少影響。最近一個研究顯示，間斷的睡眠會產生類似睡眠不足的生理影響。 說到底，睡得夠、睡得好、控制飲食和多做運動才是防止痴肥的不二法門。 
Acute short term sleep loss and prolonged sleep deprivation have similar instant outcomes. Firstly, the release of a hunger hormone (Gherlin) in human body increases while that of a satiety hormone (Leptin) decreases significantly as soon as two nights of sleep loss, sensing our brain to enhance food intake. When energy intake is larger than energy expenditure, the positive energy balance leads to overweight or even obesity. Secondly, more stress hormone (Cortisol) will be secreted, leading to accumulation of abdominal fat. Thirdly, reduced production of insulin and glucose intolerance will also be seen when sleep deprived. The last two factors in turn increase the risk of acquiring type II diabetes mellitus. Yet a number of other physiological changes will also be caused if you do not get enough sleep.  A complete sleep will allow you to be recovered from the physiological changes brought by acute short term sleep. However, that of long-term sleep deprivation cannot be reversed or compensated by sleeping. But please do not get us wrong. We are not telling you to sleep as much as possible to save yourself from being overweight. In general, an optimal sleep is 8 hours for adult adults and 10 hours for children. Besides sleep duration, sleep quality also plays a role. A research study indicated that discontinuous sleep brings similar physiological changes as that of sleep deprivation. All in all, sufficient sleeping duration together with good sleeping quality, diet control and regular exercise are good means to tackle and prevent obesity.  我們現已登陸facebook！全新HK BioTek專頁將配合facebook全新打咭功能，為會員提供不同優惠。除此之外，HK BioTek將繼續透過本平台，提供不同健康資訊。關注健康的您絕對不容錯過，請按此獲得詳細資料。HK BioTek is now on facebook! Our new page will incorporate the new check-in function, providing more privilege for our members. In addition, we will keep you up-to-date on various health topics through this platform. Please click here for more detail. |
