Why do you want to sleep when reading?

Psychologically, this is a bad habit formed by conditioned reflex. Sleep is originally an instinctive behavior of people who have nothing to do with reading activities, but because it is related to irrelevant stimuli, it forms a corresponding conditioned reflex. People are tired, but they still insist on reading and studying. They picked up the book and couldn't resist the attack of fatigue, so they wanted to throw it to sleep, but they felt that they couldn't study and read, so they barely supported it. After many repetitions, learning and sleep are two unrelated activities. After continuous strengthening, this connection is gradually fixed, and reading becomes the inducing factor of sleepiness in the future. As long as they pick up the book, they want to sleep.

Of course, some people are not caused by labor, or they may be because they are not interested in books or don't like learning. Therefore, to overcome this problem, we must eliminate inhibitory conditioned reflex and establish excitatory conditioned reflex. So, how to establish this reflection? Cultivating a strong interest in learning is the driving force for progress. For the subject, there is always an emotional experience of happiness, happiness and satisfaction.

In general, we should do the following: Don't read when you are tired or sleepy. There are certain limits to human functional activities. If the activity exceeds the limit, the cerebral cortex will automatically enter a state of inhibition. This is called protective inhibition. Don't read books immediately after meals. After eating, the activity of digestive system increases and the cerebral blood flow decreases relatively. The central nervous system mainly controls the digestive system while inhibiting other parts. If you read a book at this time, it is not only ineffective, but also easy to form an inhibitory conditioned reflex.

You'd better not read before going to bed. Some people are used to reading in bed, which is considered hypnosis. This habit is most likely to form an inhibitory conditioned reflex. Don't read books immediately after strenuous activity or emotional excitement. Because of the mutual induction law of nerve excitation and inhibition in cerebral cortex, we can produce inhibition after excitation in cerebral cortex. If you read a book after strenuous activity or emotional excitement, it is easy to establish contact with inhibitory reactions and produce inhibitory conditioned reflex.