What is the danger of high levels of calcium in the blood

Hi,
Calcium is an essential mineral that plays an important role in the contraction of muscles, the release of hormones and to maintain normal nerve and brain function. So, a higher than normal level of calcium will adversely affect all of these functions. The main cause of hypercalcemia is overactivity in one or more of your parathyroid glands, which regulate blood calcium levels. Complications of untreated hypercalcemia include
osteoporosis, kidney stones and kidney failure, nervous system problem such as confusion, dementia and coma and abnormal heart rhythm.