The human brain is divided into the cerebrum and cerebellum, which consists of the cerebral cortex, limbic lobe, brain stem, and brain beam. The outer layer of the brain is called the cerebral cortex, which can be divided into three parts: frontal lobe, temporal lobe, and occipital lobe in terms of location. In addition, the brain is divided into two halves: the right hemisphere is the right brain and the left hemisphere is the left brain. The left brain and the right brain have the same shape but very different functions.