Maybe if you go online and show him the progress made in treatment options, and the fact that many people live many many years without much advancement, it might help him.

Men are great at denying, aren't they? They are taught to be stoic and strong…what we do to our boys

One argument you can use to get him to be proactive in fighting this disease is to tell him, "You wouldn't be happy if I gave up and let MS take over my life would you? I want you around for a long time, and if you won't fight for yourself, then fight for my sake."

Hugs and prayers, hon