When we sit on the floor, our heart gets the benefits of easy circulation of the blood, as the blood is easily pumped through the heart to all the organs needed for digestion. When we sit on the dining table and chair, the more blood flows to the legs as they are at a much lower level than the heart. Thus causing heart to work harder to maintain the blood flow. Therefore sitting on the floor leads to a healthy heart by reducing the excess pressure on it while eating.