For decades I have found people who work shifts respond very differently to my treatment plans – in fact, I have consistently found them the most difficult to treat. I did not, however, know that the disrupted circadian rhythms put shift workers at greater risk of multiple sclerosis. In a way, it was no surprise to read an article in the Journal of Occupational and Environmental Medicine called “Rotating night shift work and risk of multiple sclerosis.” The results of this la