... substances found in the blood. Over time, plaque hardens and causes your arteries to narrow. That limits ... your coronary arteries. This can cause them to harden and narrow. When this happens, some parts of ...

... p >Over time, the deposits of pigment can harden (calcify). Calcification in joints or ligaments causes them ... gluten, a protein found in wheat, rye, and barley. Celiac disease is an autoimmune disorder; autoimmune disorders ...