Niven /niv-en/ [2 sylls.] as a boys' name. Niven's root is Latin, and the name Niven means holy, sacred; little bone; servant of the saint's disciple. Niven is a variant transcription of Nevin (Latin).
The average life expectancy for someone with MS is 35 years after the symptoms begin. This represents a life expectancy of 95 percent of someone who does not have multiple sclerosis. Most people with the disease can function effectively; however, a rare form of acute MS can be fatal within weeks.
To be considered an MS relapse: 1  Old symptoms of MS must have become worse or new symptoms appeared. 2  Symptoms must last at least 24 hours. 3  Symptoms must occur at least 30 days after the last relapse.  There must be no other explanation for the symptoms.