Down Syndrome Topic Guide
Down Syndrome: Down syndrome is a genetic disorder that is caused by an extra chromosome 21. Down syndrome is also referred to as Trisomy 21. Other variations of Down syndrome include Robertsonian translocation and partial/segmental trisomy, and mosaic Down syndrome. There is no treatment for Down syndrome.
Cognitive Deficits Cognitive deficits (intellectual disability) begin in childhood and cause impaired ability to learn and function. Impairment level is categorized as mild, moderate, severe, or profound. Causes include genetic abnormalities such as Down syndrome, premature birth, exposure to toxins, and others. Symptoms include developmental delay, behavioral issues, or difficulties in school. There is no specific treatment, but some may benefit from dietary changes, medications, and therapies.
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