A patient with 90% brain loss.

In 2016, an ordinary Frenchman went to the hospital with weakness in his leg. The doctor did not find a problem and decided to send the poor fellow for a full examination, which showed that the patient was missing 90% of the brain. The man quietly lived 44 years of a normal life without knowing that he had one big dropsy in his head. At the same time, his IQ is 84, which is quite a bit below average.