1. Psoriasis is a disorder triggered by an immune system malfunction. True False 2. Lesions most commonly appear on the scalp, knees, elbows, and torso. True False 3. Psoriasis usually appears between the ages of 40 and 55. True False 4. Emotional stress or changes in climate may cause a flare-up of symptoms. True False 5. The first step in psoriasis treatment is usually medications for the skin. True False 6. Severe cases of psoriasis have been linked with cardiovascular disease. True False 7. The best way to control the itching of psoriasis is to use a moisturizer. True False 8. You can feel less self-conscious about skin lesions by covering up with clothing or with cosmetics. True False Past Quizzes View a full list of past quizzes here