Altering a display of visual information in real time on an electronic visual display of a mobile computing system to encourage desirable behavior, such as spinal posture. In an embodiment, a system determines an angle of inclination of a mobile computing system, which is indicative of a spinal posture of a user of the system. When the user's spinal posture is within an angular range that corresponds to a less desirable spinal posture, the system progressively alters a display of visual information by an electronic visual display of the system to encourage the user toward a more desirable spinal posture.
