“Posture is the key. If your spine is not balanced, you will inevitably have problems in your back, your neck, your shoulders and even your joints.”
Mary Ann Wilmarth, chief of physical therapy at Harvard University Health Services
Posture matters to your health because if your body position deviates from the norm, over time you can develop problems with breathing, mobility, or balance. Poor posture may also impede your ability to grow muscle. This is a particular area of concern for children who are still growing.