Categories of Diseases.

... Categories of Diseases There are 9 different categories of diseases: Physical Infectious Non - Infectious Deficiency Inherited Degenerative Mental Social Self - Inflicted Below is a definition and example of each. Physical: These are associated with temporary or even permanent damages to part of the body. Physical diseases includes all other types of diseases e.g. Inherited, but they do not cover mental diseases where there is no sign of any physical damage to the brain. An example of a physical disease is: Multiple Sclerosis. MS is thought to be an autoimmune disease that affects the central nervous system. Surrounding and protecting the nerve fibres of the CNS is a fatty tissue called Myelin, which helps nerve fibres conduct electrical impulses. In MS, myelin is lost in multiple areas, leaving scar tissue called sclerosis. When myelin or the nerve fibre is destroyed or damaged, the ability of the nerves to conduct electrical impulses to and from the brain is disrupted, and this produces

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