22/07/2026
🧬Fragile X Awareness Day 🧬
Fragile X Awareness Day takes place on Wednesday, 22 July 2026. It raises awareness of Fragile X syndrome, the most common inherited cause of intellectual disability and the leading single-gene cause of autism.
Fragile X syndrome is caused by a change in a single gene, FMR1, on the X chromosome. This gene normally produces a protein essential for healthy brain development; when the gene is altered, the protein is reduced or absent, and development is affected. Fragile X syndrome is the most common known inherited cause of intellectual disability and the most common single-gene cause of autism, with autism spectrum disorder present in an estimated 50 to 70 per cent of people who have the syndrome.
