@thebiovitality: What Gastritis Really Does to Your Stomach? Gastritis occurs when the stomach lining becomes inflamed and its protective mucus layer weakens. Once this barrier is damaged, stomach acid can irritate the tissue and disrupt digestion. This short visual explains how gastritis affects the stomach and the digestive system. #gastritis #guthealth #stomachhealth #digestion #humanbody #medicalanimation #healthscience #anatomy #healthfacts