Cockayne Syndrome Type 1 (CS1) is a rare, inherited disorder that affects the growth and development of the body. It is characterized by growth failure, premature aging, and progressive neurological problems. Affected individuals typically have a small head size, short stature, and a lack of coordination. They may also have vision and hearing problems, as well as learning disabilities. Other features of the disorder can include skin abnormalities, skeletal abnormalities, and an increased risk of certain types of cancer.