It frequently happens, researchers and reporters miss the point.
I'm much more interested in quality of life. So, my question: On a daily basis, how is your back? Upwards of 80% of the population experience back pain. I was one of them and I did something about it.
Here's a simple solution.
1. Since many of us sit at desk for many hours during the day, a good desk chair is important. Most office chairs are horrible. Before I purchased a new chair, I came home every night with an achy back. Once the new chair was purchased, the achy back syndrome disappeared.
2. Get a good bed. It makes a huge difference.
3. If your car does not provide a good lumbar support, purchase one (a lumbar support, not a new car).
Of course, diet and exercise also play an important role.
How do I know this works? At the age of 47, my doc told me that I have the back of an 85-year-old (ain't got no discs). Ten years later, I have no back pain.
By the way, this cartoon is my take on most research.