... in response to What is Superman Syndrome?
  1. Carol Meerschaert Carol Meerschaert United States says:

    As the Executive Director of AXYS, the Association for X & Y Variations (genetic.org), an advocacy, education and support organization for individuals with X & Y chromosome variations and their families, I applaud your article helping raise awareness of XYY.

    Many boys and men with 47,XYY have no symptoms at all. Others can demonstrate significant developmental and behavioral issues. Approximately 30 percent of affected boys have mild autism, but nearly all develop functional language skills.

    We offer support groups and information for those with XYY. Please visit genetic.org for more information.

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