Exercise ball a chair because of ergonomic considerations or biomechanical reasons. This large plastic ball, known as a "birth ball", can also be used during labour to aid the descent of the fetal head into the pelvis. Sitting in an upright position will also aid fetal positioning and is more comfortable for the woman. Sitting on the ball with arms placed on a bed, table or otherwise sturdy object for support and gently rocking the hips may help the woman during contractions and aid the natural physiological process of birth. Exercise ball An exercise ball, also known as a Swiss Ball, is
Harvey Ball he started his own business, Harvey Ball Advertising, in 1959. He designed the smiley in 1963. The State Mutual Life Assurance Company of Worcester, Massachusetts (now known as Hanover Insurance) had purchased Guarantee Mutual Company of Ohio. The merger resulted in low employee morale. In an attempt to solve this, Ball was employed in 1963 as a freelance artist, to come up with an image to increase morale. What he created was a smiley face, with one eye bigger than the other. In less than ten minutes, Harvey Ball came up with the simple yet world-changing smiley face. The simplicity