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Can Stress Cause Trisomy 21 (Down Syndrome)? Understanding the Causes

Learn why stress does not cause trisomy 21 and explore the true genetic causes of Down syndrome.

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Video transcript

Stress does not cause trisomy 21 (Down syndrome). Trisomy 21 is a genetic condition that results from an extra copy of chromosome 21. The primary cause is a random error in cell division called nondisjunction. While managing stress is important for overall health during pregnancy, there are no scientific links between maternal stress and the development of chromosomal abnormalities like trisomy 21.

Questions and answers

  1. What causes trisomy 21 (Down syndrome)?

    Trisomy 21 is caused by a random error in cell division called nondisjunction, which results in an extra copy of chromosome 21.

  2. Does maternal stress increase the risk of trisomy 21?

    No, there is no scientific evidence linking maternal stress to an increased risk of trisomy 21 or other chromosomal abnormalities.

  3. How can I reduce the risk of chromosomal abnormalities during pregnancy?

    While you cannot prevent genetic errors like nondisjunction, maintaining a healthy lifestyle and regular prenatal care can support overall pregnancy health.

  4. What is nondisjunction in genetics?

    Nondisjunction is a random error in cell division where chromosomes fail to separate properly, leading to an abnormal number of chromosomes in a cell.

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