1. How many Americans have osteoarthritis?
a. 2 million
b. 27 million
c. 1 billion
d. 5
2. Which joint disease is characterized by morning stiffness and heated, swollen joints?
a. Osteoarthritis
b. Rheumatoid arthritis
c. Lupus
d. Chronic hypertaeboitis
3. What is generally known as the “wear-and-tear” joint disease?
a. Osteoarthritis
b. Lupus
c. Hip dysplasia
d. Rheumatoid arthritis
4. True or false: Vitamin D deficiency may increase pain and make walking more difficult for osteoarthritis patients.
Answers: 1. B; 2. B; 3. A; 4. True: Recent studies show a connection between vitamin D and joint health. Maintaining adequate levels of vitamin D is important for many parts of the body, including the joints.