PATHOLOGY

Detailed explanation-1: -It is hard to pin down what makes the human brain exceptional among mammals-neither brain size, relative brain size nor number of neurons is unique to humans. More intelligent people do better in life, but there is only weak correlation between brain size and intelligence, especially across species.

Detailed explanation-2: -Most of the neurons in your brain were created before you were born. But some areas of the brain make new neurons after birth in a process called postnatal neurogenesis. A few areas, including the cerebellum and the prefrontal cortex, continue adding new neurons in infancy.