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What are some reasons for brain shrinkage?

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Causes of brain shrinkage include stroke, Alzheimer's disease, cerebral palsy, aging, and infectious diseases such as encephalitis and neurosyphilis, according to Alzforum and the National Institute of Neurological Disorders and Stroke. Dementia, seizures and speech disturbances are often associated with brain shrinkage.

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Full Answer

Brain atrophy can occur throughout the brain or can be limited to specific locations, explains NINDS. Atrophy of cerebral tissues leads to impaired thinking.

Many healthy individuals experience brain atrophy as they age, without experiencing cognitive impairment, according to Alzforum. However, researchers have found that Alzheimer's sufferers lose brain tissue three times faster than individuals with healthy aging brains.

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