[Changes in the renin-angiotensin-aldosterone system in the development of hypertension in aging. 2].

The change of the reactivity of the RAAS during physiological aging of the organism implies the variety of forms of the course of hypertension: The RAAS is involved in stage I of the development of the disease. The progress of the disease (stage III) results in the "decay" of the RAAS. A dependence of the activity of the RAAS on the clinical course and on the hemodynamic variant of hypertension in old age could detected.