The right ventricle then pumps blood through the pulmonary artery into the lungs. 4. In the lungs, tiny blood vessels called capillaries absorb carbon diox-ide from the blood and replace it with oxygen. 5. Oxygenated blood then flows through the pulmonary vein and into the left atrium. 6.
It is this hormone progesterone that can affect your digestive system by delaying the transit time of food through the intestines and hence may lead to constipation before your period. Usually though, you should find that the period-related constipation eases with the start of menstruation.
Ways to help relieve constipation during your period. Beans and peas. These pulses are high in fibre, which can help reduce constipation by adding more bulk and increasing the water content of the stools, which together allows a much more effective transit through, and elimination from, the body.