Humor Therapy and Rheumatoid Arthritis

The goal of this prospective, randomized controlled study was to inverstigate the effect of humor on pain and in patients with rheumatoid arthritis (RA) during IV treatment. The main question\[s\] it aims to answer are: * to compare the effect of humor on pain between two groups of patients with RA who watched a comedy movie (intervention group) and who did not (control group) during IV biological therapy. * to compare the effect of humor on anxiety between two groups of patients with RA who watched a comedy movie (intervention group) and who did not (control group) during IV biological therapy. Participants in the intervention group watched a comedy movie during routine IV biologic treatment in the chemotherapy unit, while the control group received only routine IV biologic treatment as a usual care.