You can tell a lot about a person by their posture.
Poor posture can be caused by a number of health and lifestyle factors
For example, flat feet is a posture problem that can cause your entire biomechanics chain to be imbalanced. Because of the position of your feet, your legs and knees change the way of pressure and weight distribution. This then affects the stress on your knees and the way you walk. Ultimately this may even influence your hip joint.
This is why it is important to get a comprehensive foot assessment. It will help you understand the connection between a posture problem and feet