The Frenchman, who lives a completely normal and healthy life - despite the absence of 90% of the brain, forced scientists to rethink what the human consciousness is from a biological point of view.
For the first time the case of this man was described in 2007, and for almost 10 years now scientists have not been able to solve his riddle. Then the Frenchman was 44 years old, and he lived all his life, not even suspecting that something was wrong with him.
He went to the doctor because of pain in his left leg, and when he was done an MRI of the whole body, they noticed that almost the entire head was filled with liquid with only a small portion of brain tissue. According to the doctors, the man gradually developed hydrocephalus all his life. Such a diagnosis was made to him in infancy, but then removed from the register.
Despite the minimal brain, the man was not mentally retarded. Yes, he has a low IQ - 75, but he worked as a civil servant, got married and had two children. To the surprise of the doctors, all his health indicators were normal, despite the literal absence of important parts of the brain.