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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 ...
Roughly 20% of persons greater than 60 years of age have a neurological disorder, with episodic disorders being the most common, followed by extrapyramidal movement disorders and nerve disorders. [15] Diseases commonly associated with old age include Multiple system atrophy [16] Parkinson's disease [17] Alzheimer's disease [18] Stroke. [19]
The specific causes of neurological problems vary but can include genetic disorders, congenital abnormalities or disorders, infections, lifestyle, or environmental health problems such as pollution, malnutrition, brain damage, spinal cord injury, nerve injury, or gluten sensitivity (with or without intestinal damage or digestive symptoms).
Most relevant human neurodegenerative diseases share the property of having abnormal structures made up of proteins and peptides. [75] Each of these neurodegenerative diseases have one (or several) specific main protein or peptide. In Alzheimer's disease, these are amyloid-beta and tau. In Parkinson's disease, it is alpha-synuclein.
They are also not accelerated aging diseases, all of which are genetic disorders. Examples of aging-associated diseases are atherosclerosis and cardiovascular disease, cancer, arthritis, cataracts, osteoporosis, type 2 diabetes, hypertension and Alzheimer's disease. The incidence of all of these diseases increases exponentially with age. [1]
Catalepsy is a nervous disorder characterized by immobility and muscular rigidity, along with a decreased sensitivity to pain. Catalepsy is considered a symptom of serious diseases of the nervous system (e.g., Parkinson's disease, Epilepsy, etc.) rather than a disease by itself. Cataleptic fits can range in duration from several minutes to weeks.
It is one of the most common causes of disability among the elderly but can develop before the age of 65 when it is known as early-onset dementia or presenile dementia. [ 279 ] [ 280 ] Less than 1% of those with Alzheimer's have gene mutations that cause a much earlier development of the disease, around the age of 45, known as early-onset ...
This also explains why dyschronometria is seen more commonly in the elderly due to the deterioration of physical brain matter with age. Other probable causes for the deterioration of brain matter in the elderly include increased supranational activation, decreased cerebellar activation (which is consistent with fronto-cerebellar dissociation). [10]