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.

Good posture is not just about sitting straight. It can help you feel better, think more clearly, and could prevent nerve compression, poor tolerance of physical activity, and chronic pain. Poor ...

Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical Solutions for Back ...