1. Very few people are affected by back pain.	truefalse
2. Back injuries cost employers an estimated $10 billion a year.	truefalse
3. The back is a complex system of bone, discs, muscles, and nerves.	truefalse
4. The spine is a straight column of rigid bones.	truefalse
5. The safest way to lift an object is to stand close to it bending your knees and letting your legs do all the work.	truefalse
6. Regular exercise will keep your back limber and help prevent injury.	truefalse
7. A lumbar support or a rolled up towel will relieve stress on your spine.	truefalse
8. Your lower back is subject to greater mechanical stress than any other part of your body.	truefalse
9. If you are under 50 there is no need to worry about osteoporosis.	truefalse
10. Once you've injured your back you can never fully recover.	truefalse