Cerebral palsy is a group of disorders that affect movement and posture. Muscle tension is one of the most common symptoms. This disease is caused by brain damage before its growth is complete, often before birth. Cerebral palsy causes immobility and is usually accompanied by excessive prolapation or relaxation of the limbs and torso and these signs appear abnormally to the body or involuntary movements and a range of similar symptoms.
As for autism, it is a brain strike characterized as developmental disorders begin in the early stages of development. A common sign in autistic patients is a lack of effective and social communication.