Impairment: is a problem with the structure, and effectiveness of the body
inefficiency: is the inability of a person to do his habits because of the negative impact of the surrounding environment or personal capacity
disability: is the individual movements disability because of a defect or a handicap or disease limits the regular function
Causes of disabilities
1- Studies have shown that there is a great relationship between disability and inbreeding
2- Natural disasters
3- Manmade disasters such as(Falling from a high place. Incidents ,and violence).
4- Elderly persons
Classification of disability
1- spinal cord injuries
2- myasthenia
3- head injuries
4- Rheumatism
5- Backbone injuries