For many years people with multiple sclerosis have limited their activity levels to in order to not exasperate their symptoms. Since then research has shown that supervised exercise (aerobic and strength) training can be beneficial for people with mild to moderate multiple sclerosis. Current evidence now suggests that exercise may actually go even further than improving function and better managing symptoms in multiple sclerosis, but may actually have a disease modifying effect, suggesting that guidance for long-term prescription is imperative.