Neurology is a branch of science that examines the structure, diseases and physiology of the nervous system. Generally, it examines the brain, brainstem, spinal cord and its surroundings. For example, it is necessary to consult a neurologist for problems such as seizures, confusion, sensory changes, headache, muscle and coordination problems or head trauma. For the diagnosis of neurological diseases, a very detailed history and physical examination are performed first. Imaging tests are performed when necessary. Some diseases and disorders that fall into the treatment areas of neurologists include stroke, Parkinson's and Alzheimer's disease, MS (multiple sclerosis), ALS (amyotropic lateral sclerosis), epilepsy, migraine, tremors, sleep disorders, brain and spinal cord injury, peripheral nerve disease and brain tumors .