What is ANP?

ANP, or Atrial Natriuretic Peptide, is a hormone produced by the atria of the heart that helps regulate blood pressure and fluid balance in the body. It promotes natriuresis, the excretion of sodium through urine, which in turn reduces blood volume and lowers blood pressure. ANP is released in response to atrial stretch, often due to increased blood volume, and plays a key role in the cardiovascular system's homeostasis.