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.
Severe chronic constipation can lead to problematic complications like fecal impaction and fissures (Basilisco 2013; Jamshed 2011; Rogers 2013; Mayo Clinic 2012). In this protocol you will learn about the causes of constipation and how diet and lifestyle changes can help promote regularity (Rao 2014). You will read about new insights into the gut-brain axis, which links constipation to cognitive decline, mood disorders, and neurodegenerative diseases (Daulatzai 2014).