What is the function of aldosterone?

Aldosterone is a hormone produced by the adrenal glands that plays a crucial role in regulating blood pressure and maintaining electrolyte balance in the body. Its primary function involves the reabsorption of sodium and the excretion of potassium in the kidneys. By promoting sodium retention, aldosterone increases the volume of fluid in the bloodstream, contributing to higher blood pressure. Additionally, the regulation of potassium levels is vital for maintaining proper muscle and nerve function. This balance supports overall cardiovascular health and fluid homeostasis, making aldosterone essential for blood pressure regulation.