Interesting that some people can turn it around. I believe the benefits of sun are maybe poorly understood for now, and I maybe spent too many decades hiding from the sun entirely, as a fair-skinned person, tracking the UV index a little too closely.

That said, I've also read that heat can make MS symptoms worse. I anecdotally get a bit weird in the heat. So, I thought maybe I'd stick to colder, cloudier places. But maybe that's wrong, and I should get a sunny, not-so-hot place. Maybe that only leaves California, or I can stop wearing coats in winter to get some rays at a low temperature :)