SWNS_SMILING_EVAN_08

Evan Clarkson (7) who has Angelman Syndrome, which used to be known as Happy Puppet Syndrome, with his mum Kerry at home in Melton Mobray, Leicestershire. See NTI story NTISMILE. A seven-year-old boy suffers from a rare genetic condition which means he cannot stop smiling. Evan Clarkson was born with Angelman syndrome – a chromosome disorder which causes severe learning difficulties – and puts a permanent smile on his face. Sufferers present a happy demeanour, so are often smiling or laughing, and tend to be easily excited. The rare condition affects between one in 15,000 to 20,000 babies born each year.