[The connection between multiday rhythms of certain indicators of systemic and cerebral hemodynamics and autonomic...

Near-week and multiple of them rhythms are revealed in the dynamics of the studied biological functions and cosmophysical indices. The conception of endogenic nature of biological rhythms is discussed. It is shown that the group of people sick with essential hypertension is divided into three subgroups according to the type of link of biological rhythms with the cosmophysical; hypersynchronous, moderate synchronous, and asynchronous. It is suggested that the type of link with external factors is attributed by the of interaction of various function in the organism.