Why do I get sleepy when I study? Is it the brain that is protecting itself?

Hello, so when we read a book that is difficult for us to understand and remember, our brain is running at high speed, the brain's working capacity and storage, and memory is also very limited.

The brain protects our performance.

In fact, being sleepy when reading is a way for the brain to protect us, because in the process of reading, the brain is in a stage of high-speed operation, and the energy consumed is about 20% of the total energy of the human body. It will make our brain very tired, and it will produce feedback, so being sleepy when we are reading is a manifestation of the brain protecting us.

Why do I get sleepy when I study?

The main reasons why you get sleepy when you read a book are as follows:

1. Emotional factors: mainly due to the lack of interest in the content of the book, the heart is full of boredom and resistance, resulting in the cerebral cortex can not be excited, and it continues to be in a state of inhibition;

2. Brain fatigue: If the brain is used excessively when reading a book, the brain will continue to be in a state of excitement, and the brain will enter an inhibited state after excessive excitement, mainly due to high-intensity mental work;

3. Other factors: such as the length of time to read and the posture of reading, etc., may cause visual fatigue, thereby inducing cerebral cortex inhibition.

The first point is that you will be sleepy when you read, and it is very likely that you don't like to read, the second point is that there are some problems with your brain, and the third point is that you may be in that state of sleep, so you don't want to read anymore.

It's because I feel that reading is not interesting, I don't have internal drive, and I don't want to read deeply, it's not that the brain is protecting me.

It's because our attention can't last that long, it's to protect our nervous system.

Why is it that as soon as we read, our brains are afraid of tiring us, and they want to protect us and let us rest, while Xueba doesn't seem to be sleepy and can study for hours in a row, so why don't they need protection?

Scientists have found that when the top students perform cognitive tasks, the energy metabolism rate of the cerebral cortex is relatively low. In other words, when the top students are thinking, they consume less energy. This is because the interconnection of neurons in Xueba's brain is more concise and efficient. Hu Ying Bridge.

The number of neurons in the brain is related to the knowledge mastered. When a new knowledge is learned, a new connection will be established, and the connection is often fragile when it is first established, and it needs to be repeated many times to memorize, use, and practice to make the connection strong.

The connection of different neurons is the connection of different knowledge, and the isolated knowledge is less connected with the surrounding neurons, and it is easy to forget it after a long time, and the connection will become weaker and weaker, and it is easy to forget. The connection between neurons is concise and efficient, that is, the connection between different knowledge is concise and efficient, so a clear grasp of each knowledge, and a clear knowledge of the difference and connection of each knowledge, can finally make the brain clear.

The more intelligent a person is, the more knowledge he has, and each knowledge is very clear and accurate, and the connections between knowledge are also very clear and accurate. Therefore, the brain will work more efficiently, and it will consume less energy when processing the same task, which will not easily trigger the negative feedback mechanism of the brain, and it will not be easy to get sleepy when reading.

Scientists also found that the learning efficiency was highest when the ratio of new to old knowledge was 75:25. On the basis of existing clear knowledge, choosing the right learning materials can achieve the highest efficiency without making difficulties in reading.