Medicine: William's syndrome

For once, I must actually agree on an opinion! William's syndrome is caused due to a genetic anomaly. Yet these people, suffering from some cognitive deficits, are really much more sociable than any other. Maybe there's some mental retardation, but there's some love for music and a bit of "perkiness" if you will. They feel happy, they are happy and they spread it all around them. I have encountered a person with Williams syndrome. The bad side of the story is that despite their "happy" state these persons require some assistance in managing life situations.