Calcium is needed by the body to function properly. Calcium can affect your nerves, muscles, digestive tract, kidneys, and the way your heart functions. When the calcium level becomes too high, you may develop unusual symptoms. The calcium level in your blood is normally controlled by hormones, the kidneys, and bone.
Pervasive developmental disorders: Types list. The list of types of Pervasive developmental disorders mentioned in various sources includes: 1  Autism. 2  Asperger syndrome. 3  Childhood disintegrative disorder. 4  Rett's syndrome. 5  Pervasive developmental disorder not otherwise specified (PDDNOS) - also called atypical autism.
Over 6 million individuals in the United States have developmental disabilities. A developmental disability, according to the Developmental Disabilities Assistance and Bill of Rights Act, is defined as a severe, chronic disability which: 1  originated at birth or during childhood,2  is expected to continue indefinitely, and.xamples of developmental disabilities include: 1  Autism. 2  Behavior disorders. 3  Brain injury. 4  Cerebral palsy. 5  Down syndrome. 6  Fetal alcohol syndrome. 7  Intellectual disability. 8  Spina Bifida.