Question:

How can one explain the processes of the human body's rejuvenation by means of the IWT?

Answer:

First of all, the observed results of the human body's rejuvenation can be explained by the normalization of the entire human body's vitally important functions: immune hormone, bioenergy, etc. The human body gets rid of slags; bowels work better, functioning of the vitally important organs is getting normal; there takes place the relieve of fatigue, strains and stresses; pains stop, human body's resistance to illnesses increases, etc. However, I don't think it's sufficient to fully explain this phenomenon. No matter how defiantly it sounds, it's necessary to assume a hypothesis of the possibility to control "the biological time" (Vernadsky's term) by means of the IWT, i.e. to control "acceleration" or "deceleration" of the psychophysiological processes taking place in the human body.

Anyway, it sounds reasonable to look for a scientific answer to such a problem. Those inquisitive doctors who want to see the legitimacy of the way the question is put can avail themselves of the following publications:
K.A. Ivanov-Muromsky. Evolution of paradigms and scientific myths about our brain. Kiev: Preprint 95-1

V.M. Glushkov Institute of Cybernetics, 1995-p.50

"The mechanisms to control your memory" - The materials of the international symposium 1979 A.A.Uhtomsky - Collected works. L.: Leningrad University 1950 - v.1, p. 173

A.P.Dubrov, B.H.Pushkin "Parapsychology and modern natural sciences". M.: Sovaminko 1989-280p.