Aldosterone physiology is the academic field dedicated to the comprehensive investigation of the steroid hormone aldosterone, encompassing its biosynthesis, secretion, regulatory mechanisms, cellular and molecular mechanisms of action, and integrated systemic effects. This area of research is crucial for understanding the physiological control of electrolyte homeostasis, extracellular fluid volume, and arterial blood pressure, as well as the pathophysiological consequences of its dysregulation in conditions such as hypertension and primary aldosteronism.