With Yoga you get more blood flowing in your body and therefore through the umbilical cord and with greater specification to the foetus. With the relaxation exercises you learn in yoga you can help and support your body circulation, especially in your hands and feet. With yoga you also get more oxygen for your cells, which function better as a result of the good exchange. Twisting postures are thought to be used to squeeze venous blood from internal organs and allow oxygenated blood to flow in once the twist is released.