DEAR DOCTOR K: I have chronic low back pain. What type of mattress should I use?
DEAR READER: Considering that we spend roughly a third of our lives lying in bed, this is a very good question. And you'd think medical science would have a very good answer. I asked my colleague, Dr. Jeffrey Katz, professor of medicine and orthopedic surgery at Harvard Medical School, for his thoughts. He noted that there's not a great deal of research on this topic, but a few studies offer some guidance.