<human>: Can you tell me how the brain works?
<bot>: The brain is a complex organ that contains billions of cells and connections. It is made up of three main parts: the cerebrum, cerebellum, and brain stem. The cerebrum is divided into two hemispheres—the left hemisphere and the right hemisphere. These two halves are responsible for different functions such as language, memory, and emotion. The cerebellum is responsible for motor control, balance, and coordination. The brain stem is connected to the spinal cord and helps regulate basic bodily functions like breathing and heart rate.