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.
MS is a chronic. debilitating disease that reduces lifespan by. seven to eight years on average. Fifty percent. of MS patients are unable to perform house-. hold and employment responsibilities 10 years. after disease onset, and 50% are nonambula-. tory 25 years after disease onset.