Vascular calcification is better known as atherosclerosis. Cholesterol plaques in blood vessels are generally a mixture of calcium with the fat. Calcification also occurs in arthritis as bone spurs and calcium can collect in organs and glands and impair their function. The pineal gland is very tiny and located within the brain. It it responsible for the melatonin hormone that helps us sleep. A calcified pineal gland no longer helps with sleep but the condition may be reversible by limiting intake of calcium and increasing intake of magnesium. Reversing calcification may start with reducing calcium intake. The following article mentions a link between higher intake of calcium and worsening of coronary artery calcification and numbers of deaths within a group of end stage renal disease patients. Magnesium is wasted by healthy kidneys and little is recycled/reclaimed the way calcium and sodium are conserved by healthy kidneys - add end stage renal disease and magnesium is leaking out faster then intestinal absorption can occur even if the magnesium was in the food or drink or supplement.