Stomach acid, primarily hydrochloric acid, plays a vital role in digestion by breaking down food and enabling nutrient ...

Mayo Clinic. "Improved DNA Stool Test Could Detect Digestive Cancers In Multiple Organs." ScienceDaily. ScienceDaily, 2 June 2009. <www.sciencedaily.com / releases / 2009 / 06 / 090602092251.htm>.

Acid reflux Your sternum sits right in front of several major digestive organs. Conditions that affect your esophagus, stomach, and intestines can cause pain radiating in the chest’s center.