It's no secret that smoking increases the risk of problems like cancer, heart disease, and stroke, but new research is adding a surprise to that list -- that smokers have nearly double the risk of developing Multiple Sclerosis than non-smokers.
Researchers believe the link lies in the toxic effects smoking has on the immune system and the central nervous system. Multiple Sclerosis causes a patient's immune system to attack its own central nervous system causing problems like fatigue and bladder or bowel dysfunction.
There is no cure and the cause is unknown. While scientists say this finding is important, it's still just one piece of the puzzle in figuring out what causes MS. The study is published in the journal Neurology.