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In brain tissue, atrophy describes a loss of neurons and the connections between them. Brain atrophy can be classified into two main categories: generalized and focal atrophy. [2] Generalized atrophy occurs across the entire brain whereas focal atrophy affects cells in a specific location. [2] If the cerebral hemispheres (the two lobes of the ...
The confirmatory diagnosis is made by brain biopsy, but other tests can be used to help, such as MRI, EEG, CT, and physical examination and history. [49] As of 2011, six distinct clinical features have been identified as symptoms of bvFTD. [50] Disinhibition; Apathy / Inertia; Loss of Sympathy / Empathy; Perseverative / Compulsive behaviors ...
This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...
A 46% decrease in spine number and spine density has been reported in humans older than 50 compared with younger individuals. [12] An electron microscopy study in monkeys reported a 50% loss in spines on the apical dendritic tufts of pyramidal cells in prefrontal cortex of old animals (27–32 years old) compared with young ones (6–9 years ...
In essence, exercise caused patients to maintain or even gain cells in important brain areas, whereas lack of exercise caused an increase in the rate of age-related brain cell loss."
Cerebellar degeneration is a condition in which cerebellar cells, otherwise known as neurons, become damaged and progressively weaken in the cerebellum. [1] There are two types of cerebellar degeneration; paraneoplastic cerebellar degeneration, and alcoholic or nutritional cerebellar degeneration. [2]
So while the symptoms of brain fog can be vague and all over the place, they may stem from real changes in the brain. ... Or your mind feels foggy after you take certain over-the-counter ...
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