To keep health from a growth of overfatigue and to supervise efficiency in sport. Use: healthy life-style, sports, fitness, diagnostics of capacity for work, medical and biological researches. Only 25 seconds. It is psychological and physiological test for diagnostics a growth of overfatigue(not weariness) and tested have a negative state of central nervous system. Tapping Test will Help you to prevent overfatigue and to keep health! If you go in for sports - Tapping Test will help you operatively to supervise efficiency. Applying this test to children, we may find out if a child has predisposition to be quick overtired. Analysis of dynamics and change of speed reaction during uninterruptable physical work is taken as basis of this method.