Genetic Disorders, Explained

Genetic disorders—like Down syndrome, cystic fibrosis, Huntington's disease, sickle cell anemia, and hemophilia—can be the result of gene mutations or damaged chromosomes. These disorders may be, but aren't always, inherited.

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I Hid My Genetic Disorder for Years—Until Doctors Found a Golf Ball-Size Cyst in My Lung

All her life, Harper Spero, 35, has been living with a rare, incurable syndrome that affects her immune system. But it wasn't until she underwent life-threatening surgery in her late 20s that she began facing the challenges of this invisible illness.
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More Genetic Disorders


Sudden Death Syndrome Caused This Man's Heart to Stop Twice. Here's What You Should Know

The cardiac abnormality, officially known as Brugada syndrome, can be treated with an implantable defibrillator.