Ever been told that “bad posture” or a “weak core” is the main cause of back pain? Modern research paints a more nuanced picture. While sitting up straight and working on your abs can be helpful, they’re not the magic cure we’ve been led to believe. In fact, factors like movement variety, stress levels, and daily habits often play a much bigger role in whether your back feels stiff or pain-free. Discover why a broader approach—beyond perfect posture and crunches—may be the real key to relief.