As a sibling comment noted, the vast majority of "breakthroughs" are hot air and your discovery of a way to "fix" your colleague may not be received as warmly as you expect. I don't know anything about your colleague or your relationship with them, but I strongly advise careful consideration before broaching the subject. (In fact, I strongly advise against bringing it up at all. "I found a cure for you" is up there with "what's wrong with you" and "I'll just push your wheelchair without your consent" on the list of ways to really, really piss off someone with a disability.)