Intellectual and Developmental Disabilities (IDD) are disorders that are usually present at birth and that negatively affect the trajectory of the individual’s physical, intellectual, and /or emotional development. IDD can begin at any time, up to 22 years of age. It usually lasts throughout a person’s lifetime. People who have IDD usually have problems with major life activities such as language or mobility. Many of these conditions affect multiple body parts or systems. (nichd.nih.gov;hhs.texas.gov)