Turns out Grandma may have been on to something when she swore her knees could sense a cold front or rain coming. There is conflicting research on the subject, but I am a big believer in looking at both research, and anecdotal evidence. Some research finds no link between weather and pain, while other studies find that joint pain and weather changes have a positive correlation. Anyone who’s ever met any grandparents (or others with joint pain from things like arthritis) knows the anecdotal evidence is there. SO what do we know about the relationship between weather and pain?