How do you remember the way to your house? Where do dreams come from? It is your brain   that does these things. A British scientist showed that "sleep can improve one's memory." It's not a dream for students to study when they sleep. In fact, your brain is working day and night. If you learn words before bed, a certain part of the brain may help you to remember the words while you sleep. What's more, another scientist in the USA found that there was a "talent button  " in the human brain. It might make a person more talented. There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just two bananas can give the brain enough energy to work for a whole day. According to some scientists, yawning   keeps our brains "cool", which makes us think quicker. Here are some pieces of advice to keep a good brain: Eat healthy food. Get a lot of playtime or exercise. Don't drink or smoke. Use your brain a lot. According to the passage, if we want to have a good brain, we should   _  .
use our brains more sleep fewer hours work longer hours remember fewer things