•Central nervous system disorders, such as stroke, brain tumour, brain abscess
, multiple sclerosis, encephalitis, transient ischemic attacks or mini strokes, and transverse myelitis.
•Connective tissue diseases, for example rheumatoid arthritis, and Sjogrens syndrome.
•Nerve entrapment syndromes, such as carpal tunnel syndrome, and sciatica.
•Metabolic diseases, such as diabetes, hypothyroidism.
•Cardiovascular diseases, such as atherosclerosis.