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Central Nervous System
The central nervous system (CNS) is composed of the brain and spinal cord. The brain receives sensory information from the nerves that pass through the spinal cord, as well as other nerves such as those from sensory organs involved in sight and smell. Once received, the brain processes the sensory signals and initiates responses. The spinal cord is the principle route for the passage of sensory information to and from the brain.
Information flows to the central nervous system from the peripheral nervous system , which senses signals from the environment outside the body (sensory-somatic nervous system) and from the internal environment (autonomic nervous system). The brain's responses to incoming information flow through the spinal cord nerve network to the various effector organs and tissue regions where the target responsive action will take place. Diseases that affect the nerves of the central nervous system include rabies, polio, and sub-acute sclerosing pan-encephalitis. Such diseases affect movement and can lead to mental incapacitation. The brain is also susceptible to disease, including toxoplasmosis and the development of empty region due to prions. Such diseases cause a wasting away of body function and mental ability. Brain damage can be so compromised as to be lethal."
CNS Activator & Stimulants
CNS stimulants are medicines that speed up physical and mental processes. They are used to treat attention-deficit hyperactivity disorder (ADHD), narcolepsy, and other disorders of the central nervous system. The most commonly used and well-known central nervous system stimulant is caffeine (also known as an analeptic drug). CNS stimulants increase attention, decrease restlessness, and improve physical coordination in people who have ADHD, a condition in which people have unusually high activity levels and short attention spans. The drugs may also curbimpulsive and aggressive behavior related to ADHD.
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