Within all the people who go to their doctor with neck cramps or spasms, 67% report having neck pain, 46% report having back pain, and 33% report having shoulder cramps or spasms.
Definition of âDevelopmental Disabilityâ A developmental disability is a severe, chronic disability which: Is attributable to a mental or physical impairment or combination of mental and physical impairments, and Is manifested before the person attains age 22, and
Developmental disability. For disabilities caused by mental disorders, see Mental disorder Â§ Disability. Developmental disability is a diverse group of chronic conditions that are due to mental or physical impairments. Developmental disabilities cause individuals living with them many difficulties in certain areas of life, especially in language, mobility, learning, self-help, and independent living.