Make sure you're getting enough exercise. Exercise is essential to keeping the muscles in your back and your abs strong and healthy. If your muscles are too weak, you'll be putting a lot more stress on your bones. Stronger muscles help take some of that stress for themselves and save the bones.
If you get back injuries easily, through genetics or lifestyle choices, see a chiropractor regularly when you feel pain. Regular visits to a chiropractor will offer relief for small problems so they don't become bigger issues down the road.