Williams syndrome is an extremely rare neurodevelopmental disorder of 1 in 7,500 to 1 in 20,000 births. Dr. J.C.P. Williams first identified the syndrome in 1961.
It is caused by a deletion of about 26 genes from the long arm of chromosome 7.
People with Williams syndrome have a distinctive, elfin facial appearancev and a low nasal bridge combined with an unusually cheerful demeanor and ease with strangers. They make friends with strangers within minutes.
Other characteristics, among others, include developmental delay, strong language skills and cardiovascular problems.
Research has found an interesting fact - that people with Williams syndrome have no racial bias, because the neural pathway that imprints for racial bias is missing.