Waking up refreshed is a great way to start out the day on the right foot. However, there may be times when you wake up tired and unable to immediately get the day going, even though you've had a full night's rest. Here are a couple reasons that may be causing you to wake up groggy:
早晨精神飽滿地起床是開始新的一天的好方法。不過，有時候你會發(fā)現(xiàn)即使睡了一整晚，早上起來還是感到疲憊不堪，不能立刻開始新的生活。以下就是可能導(dǎo)致你起床后還昏昏沉沉的五大“罪魁禍?zhǔn)住保?/div>

1.Poor quality of sleep
睡眠質(zhì)量差

It doesn't matter how long you sleep for if it's low-quality rest; you'll just wake up tired. Poor-quality sleep can be caused by factors such as sleeping with a pet, drinking caffeinated beverages late in the day, or having too much noise in the background.
無論你睡了多長時間，如果睡眠的質(zhì)量很差的話，那么你起來后還是會覺得疲累的。造成睡眠質(zhì)量差的原因有很多，比如抱著寵物一起睡，在臨睡前喝了太多含咖啡因的飲料，睡眠時有太多雜音等。

2.Waking up in the wrong phase
起床的時間不對

Your sleep is split into cycles, and you might've woken up during the non-REM stage, which is a state of very deep sleep. Try to shoot for waking up during a REM phase, because then your body will be better prepared to wake up.
睡眠也是有不同周期的。如果你在非快速眼動階段（non-REM stage），即深睡眠時期醒過來，那么就會覺得好像沒睡醒一樣。所以，要盡量在快速眼動睡眠（REM）階段醒過來，這樣你就能為起床做好更充分的準(zhǔn)備。

3.Medication?hangover
藥物副作用

The effects of certain medications that cause drowsiness can linger until the next morning. Check with your doctor to see if you can adjust the dosage or change medications.
有些藥物的副作用會使你在第二天早上仍然感到昏昏沉沉想睡覺。這時，你應(yīng)該和醫(yī)生商量一下，看看能不能調(diào)整一下藥物的劑量或者換一種藥。

4.Medical condition
身體狀況

Certain medical conditions like sleep apnea can disrupt your night's rest. Disorders like depression can also cause you feel drained of energy, a symptom that can contribute to your grogginess.
有些身體狀況也會讓人睡不好，比如睡眠呼吸窒息。抑郁也會使人精神不濟，表現(xiàn)出來的癥狀就是萎靡不振。

5.Your body clock is not in?sync
生物鐘不協(xié)調(diào)

If you've been keeping an erratic sleep schedule, then your body will probably need time to adjust to waking up at a certain time during the morning. Try to make a more regular schedule, and you'll probably see a difference in how you feel in the morning.
如果你的作息時間紊亂，那么你的身體在早晨起床的時候就會需要時間來做出調(diào)整。試著保持一個規(guī)律的作息時間，你會發(fā)現(xiàn)早上起床將會有大大的不同。