Distractors
Diet and the advent of concrete flooring.
The researchers found no relevant factors.
The study was too small to form a hypothesis.
Key
Diminished physical activity and bad posture.
Question
In the news item, “Spine Curvature in Neanderthals May Provide Clues to Modern-Day Back Pain,” what did the researchers outline as factors causing the lumbar wedging they found in post-industrial spine samples?