Index of Neurologic Conditions

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Alzheimer’s Disease

Overview Source: American Academy of Neurology Alzheimer’s disease (AD) is an age-related, non-reversible brain disorder that develops over a period of years. Initially, people experience memory loss and confusion, which may be mistaken for the kinds of memory changes that are sometimes associated with normal aging. However, the symptoms of AD gradually lead to behavior [...]

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Amyotrophic Lateral Sclerosis

Overview Source: American Academy of Neurology Amyotrophic lateral sclerosis (ALS), sometimes called Lou Gehrig’s disease, is a rapidly progressive, invariably fatal neurological disease that attacks the nerve cells (neurons) responsible for controlling voluntary muscles. In ALS, both the upper motor neurons and the lower motor neurons degenerate or die, ceasing to send messages to muscles. [...]

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Aneurysm

Overview Source: American Academy of Neurology A cerebral aneurysm is the dilation, bulging, or ballooning-out of part of the wall of an artery in the brain. Cerebral aneurysms can occur at any age, although they are more common in adults than in children and are slightly more common in women than in men. The signs [...]

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Aphasia

Overview Source: American Academy of Neurology Aphasia is a neurological disorder caused by damage to the portions of the brain that are responsible for language. Primary signs of the disorder include difficulty in expressing oneself when speaking, trouble understanding speech, and difficulty with reading and writing. Aphasia is not a disease, but a symptom of [...]

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Autonomic Dysfunction (Dysautonomia)

Overview Source: American Academy of Neurology Dysautonomia refers to a disorder of autonomic nervous system (ANS) function. Most physicians view dysautonomia in terms of failure of the sympathetic or parasympathetic components of the ANS, but dysautonomia involving excessive ANS activities also can occur. Dysautonomia can be local, as in reflex sympathetic dystrophy, or generalized, as [...]

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