The branch of medicine that studies and treats disorders of the nervous system, especially the brain, spinal cord, and nerves. Doctors in this field are called neurologists.
From Greek 'neuron' meaning 'nerve' and '-logy' meaning 'study of'. It became a standard term with the rise of modern brain science in the 19th century.
Neurology explores how electrical and chemical signals in a soft, jelly-like organ create thoughts, movement, and personality. Many everyday problems—like headaches, seizures, or memory loss—fall under this one wide-reaching field.
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