What role does calcium play in hormone regulation?

Calcium is vital for hormone regulation, as it aids in the secretion of hormones like insulin and parathyroid hormone (PTH). It also supports cellular signaling, enabling hormones to act effectively in the body. Imbalances in calcium levels may disrupt hormonal activity, leading to conditions like hypoparathyroidism or hyperparathyroidism. Calcium testing helps monitor and address these disruptions.