Winter/summer it affects Jim just the same. Which reminds me I need to update how Dantrolene is going for him. It's working! He still has stiffness but no more crossing of the legs and having a mind of their own. He is taking the Dantrolene and medical mj and it's the perfect cocktail. Once they legalize medical mj he'll try going off the Dantrolene. Or it may be that the two together work the best. We'll find out.