We invite you to participate in World Fragile X Day on July 22 by lighting up Philadelphia locations teal to support Fragile X Awareness! Fragile X syndrome is the most common inherited cause of intellectual disability. Raising awareness accelerates progress toward effective treatments and, ultimately, a cure. Hundreds of locations in 18 countries have joined us through the years, creating a wave of hope and highlighting crucial research. Each participating location will be featured on our World Fragile X Day map at worldfragilexday.com.