It is easily can be proved that the human brain equipped sense organs can work as a universal measuring tool, and measure with sufficient accuracy after some training not only a distance, mass or volume but and parameters of important personal functions.  Unfortunately, this instrument does not have an indicator device (panel) and the results of measurements usually hidden in the depth of the subconscious part of the mind. To extract these results of measurements, at first, it is needed to find an access code for this information, secondly, to deduce this information in a convenient for perception form and after that to decipher it.  Based on this approach a new method of direct measurement of intellectual parameters was used for appraisal such characteristics of intellect and mind as creativity, intuition, willpower, stress level,  vital energy index, etc. Verification of the accuracy of measurement of some biophysical parameters measured by the same method (for example the number of thrombocytes in the blood)  is carried out by comparison with laboratory blood tests.

Research and physical measurements of a person's intellectual abilities have shown that they can change significantly from the influence of many external factors and, first of all, of light, electromagnetic and sound perceptions of the senses, both for the better and for the worse.  This allows significantly increasing the capabilities and expanding the range of use of any entrainment technology.

Using algorithms of multi-parameter optimization, the method allows increasing the level of intellect and its components in several times practically for everyone.

On the other hand, this method allows to develop  more effectively Audio-visual Entrainment (AVE) systems  and Mind Machines  with possibility of an optimal tuning for each person. Here is very important that measurement of  human energy, willpower and stress opens the prospect for many people to accelerate any treatment.

In the book are collected also some rules and methods allowing to support intellectual abilities of the mind on an optimum level by means of mindset management, control of the subconscious mind, cognitive control, and control emotions.

Method of measurement of intellectual abilities and compatibility of team members can be used in the process of the hiring, searching a bride, etc.