What is Williams syndrome?
Williams syndrome is a genetic condition that is present at birth. It is characterized by developmental delay, learning difficulties, a unique personality-type that combines high sociability (over-friendliness) and high levels of empathy with anxiety. People with Williams syndrome have a typical facial appearance that includes a short nose with a broad tip, a wide mouth, full cheeks, full lips, and a small chin. They are often described as “elfin-like.” They are also likely to have a long neck, sloping shoulders, short stature, limited joint mobility, and a curved spine. People with Williams syndrome are also prone to heart disease caused by narrow arteries.
SOURCE: Emory University - Department of Human Genetics in collaboration with ThinkGenetic • https://www.thinkgenetic.com/diseases/williams-syndrome/overview/18397 • DATE UPDATED: 2016-06-15