To begin with, Dreams are mysterious series of thoughts and images we experience while asleep. While their purpose remains a mystery, scientists offer theories. Some scientists __________ fail to think that dreams __________allow us to solve problems, to create new ideas and to find answers to the most complicated questions.
Dreams __________be bizarre, as some brain areas are active while others, like logic, are not active at all. Our dreams __________ depend on our emotional state as well. When we are depressed, we usually have dreams which make our sleep disturbed. When we fear something, we __________have a nightmare. We __________often dream about those we think about during the day, the Chinese say: "What you think during the daytime you will dream at night."
__________, we have common dream themes include flying, being chased, falling, or not being able to move. Dream interpretation books offer explanations, but __________we really interpret these visions?
Normal sleep is crucial for health and well-being. People, __________, need 8 hours of sleep per night. Insomnia __________be caused by factors like noise, anxiety, or existing. If a person has missed a lot of sleep, he __________be tired, become absent-minded and make many mistakes.