A review of 40 years of genetic research suggests that dyslexia, a common learning disorder affecting reading ability, may not be caused by a single faulty gene but rather by vulnerabilities in broader brain networks. A psychology professor at the University of Houston presented this perspective, challenging long-held beliefs about the origins of dyslexia. The condition impacts up to 20% of the global population—approximately 780 million people—who experience persistent difficulties with reading throughout their lives.

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