The Russian economist Nikolai Kondratiev was the first to try to prove statistically, early last century, that there are cyclical movements in the world economy of prosperity (Peaks) and depression (Valleys), a concept now known as the long cycles of Kondratiev. In fact, several natural and social phenomena can be translated by a sine wave with its Peaks and Valleys. Among them we lowlight the discovery by the French mathematician Jean Baptiste Fourier, which proved that the wave of a vibrating string, such as a guitar, is formed by the sum of several other sine format; the sinusoidal ac voltage is the most important of generating AC voltages of electricity; the rainbow colors of the spectrum are all perfectly sinusoidal frequency; the cycle of motivation, sleep, hunger, thirst, and sexual behaviour also follow sinusoidalpatterns. The very mechanics of the walking of a person can be represented by a sine wave, as initially there is an imbalance in the body from the original location where the person is, and rebalancing in a more advanced position toward the desired destination. This effect can be seen more clearly in children beginning to take its first steps. Therefore, this pattern is also part of the individual’s daily life.