Rheumatoid arthritis is a chronic autoimmune inflammatory disease of unknown cause. RA not only affects your joints but also affects a wide variety of body systems, including the skin, eyes, lungs, blood, nerves, and heart. RA affects just over 1.3 million Americans — approximately 0.6 percent of the population — and approximately one percent of the world’s population.

Psoriasis is a chronic condition that causes both physical and psychological pain. The symptoms of this incurable illness come in cycles, so long periods of remission can be followed by intense flare-ups that disrupt daily life.