Our brain is full of a large number of brain cells, and no serious neuroscientist dares to assert that a certain area is useless. When we sleep, our whole brain is active to some extent. Observation of a single neuron or cell shows that there is no inactive area in the brain. Metabolic studies of brain cell metabolism show that it is also active as a whole.
Although a large number of facts show that everyone uses 100% of the brain, there are still many people who firmly believe in 10%! In the field of evolutionary psychology, as a kind of animal, the neural circuit of human brain is more complicated than other intelligent animals.
10% adds another reason for human beings to seek their own superiority. We only use 10% of our brains to dominate nature. What if our brains are fully developed? So all kinds of imagination came out and played the role of psychological massage.