Take these quizzes from the National Institutes of Health to measure how well you know these conditions:
If you have back pain, you are not alone. At some point in life, nearly everyone has back pain that interferes with routine daily activities or recreation. Low back pain is a leading contributor to missed work.
Arthritis affects 52.5 million US adults, more than 1 in 5, and it is the nation’s most common cause of disability. Arthritis may be caused by inflammation of the tissue lining the joints.
Sickle Cell Disease is an inherited red blood cell disorder characterized by abnormal hemoglobin. Pain is a major symptom of the disease.