Down Syndrome is the most common genetic disorder that is detected at birth which occurs when a person has a full or partial extra copy of chromosome 21. An individual with this condition will typically have an intellectual disability, with an average IQ of 50, which is equivalent to an 8 or 9 year old child. Delayed development in speech is common, along with behavioral issues such as temper tantrums, obsessive compulsive disorder and having difficulty with paying attention. The physical features of a person with down syndrome are very distinct in the facial characteristics, but vary in every individual. The severity with health risks, development, and behavioral issues also varies in each individual.