Make sure it's not comfortable (like on your bed or sprawling out on the couch) because you will risk falling asleep.  Find or create a well-lit area. When it's too dark around you, your body thinks, "Hey! It's time to hit the hay!" Fool it by turning on plenty of lights, simulating daytime.     Remove yourself from all distractions. That means putting your phone away. You may have spent the entire semester texting during lectures, and this may be your punishment. Turn it off. While you're at it, stay away from the iPad and laptop, too (unless you have study material on your computer) -- Facebook, fantasy baseball, and Pinterest do not exist in your book right now.    You may think 16 cans of cold Red Bull and five Snickers bars are the best way to go, but, sadly, they're not. Hyping yourself up on caffeine may keep you awake initially, but you'll just end up crashing harder later -- when it's actually test time.  Go for fruits. An apple does a better job at keeping you focused and awake than caffeine. It's higher in natural sugars and it is nutritious. Nutrition should be thought of as energy in this circumstance.     If you're full, you won't be thinking about food, another reason you'll be able to stay focused. Alright, so, worse comes to worst: You wake up in a pile of apple cores with ink emblazoned onto your cheek because you fell asleep on your chemistry notes. But you remembered to set your alarm, so you're not going to miss the test! So do it now, before you accidentally fall asleep. You may be grateful that you did.

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Write a summary of the previous text in Vietnamese:
Tìm không gian yên tĩnh để học tập. Ăn thực phẩm tốt cho sức khỏe. Hẹn giờ báo thức.