Why is it important to keep the feet flat on the floor while sitting?

Keeping the feet flat on the floor while sitting is important primarily for improving circulation. When the feet are flat, it helps distribute body weight evenly and reduces the risk of pressure on the legs and feet. This position allows for better blood flow throughout the lower extremities, which can prevent issues such as swelling, numbness, or discomfort. Additionally, maintaining a stable base with flat feet can enhance posture, reducing strain on the back and contributing to overall comfort during prolonged periods of sitting.

The other options do not accurately reflect the benefits of this practice. For instance, increasing height is not relevant since sitting position does not affect a person's height. Discouraging movement is counterproductive in many contexts, as movement is often encouraged to promote health and reduce stiffness. Lastly, restricting blood flow is undesirable; the aim is to promote circulation, not restrict it. Therefore, keeping the feet flat plays a vital role in maintaining both comfort and health while seated.