DEAR MAYO CLINIC: My grandmother lives with me, and she is always nagging me to “stand up straight” and “put your shoulders back.” She says good posture will keep me healthy as I age. But I’m only 17.

Here’s why: Rigid corrections are impossible to maintain because they treat posture like a static position to hold rather than a dynamic skill to train. Good posture isn’t something you freeze into ...

If you could only sit stoically with good posture for the entire work day, you'd have no neck, shoulder or low back pain, right? Not quite. The idea of achieving a perfect, static posture is outdated, ...