Introduction Rheumatoid arthritis (RA) is a chronic condition that causes inflammation in the joints. RA can cause painful and swollen joints, as well as fatigue and stiffness. Say’s Dr Lane Sebring, it’s estimated to affect about 1% of people worldwide. What Is Rheumatoid Arthritis? Rheumatoid arthritis (RA) is an autoimmune disease, which means that the […]