This narrative review of the literature on noninvasive brain stimulation techniques observes four neurostimulation domains: light therapy, photobiomodulation, a group of techniques within transcranial electric current and magnetic field stimulations, low-frequency sound stimulations, including vibroacoustic therapy, and rhythmic auditory stimulation. The review aims to determine whether or not different brain stimulation approaches rely upon a similar physicochemical sequence of actions. The study identifies relevant hypotheses about processes at the cellular level underlying noninvasive brain stimulation. The data analysis reveals that mitochondria activity will likely play a central role in brain stimulations implemented by different approaches. Additionally, the mother-fetus neurocognitive model analysis gives insight into conditions of the natural neurostimulation of the fetal nervous system during pregnancy. Drawing on these findings, the article supposes the hypothesis of the origin of neurostimulation during gestation. The article presents the requisites of the nature-based brain stimulation technique, called Acoustic Photonic Intellectual Neurostimulation (APIN), derived from studying natural neurostimulation components.