Your body's master controller is your nervous system. It is made up of the spinal cord, the brain, and the nerves that link them to each and every muscle, organ, and cell in your body. All of your body's essential processes, including respiration, heart rate, digestion, movement, sensation, emotion, thought, and speech, are controlled by your nervous system. Your ability to perceive, process, and react to information in your environment is also made possible by your neurological system.
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