Case Study: The Influence of Solar and Geomagnetic EMF on the Divergence of Psychotypes in Monozygotic Twins

Abstract: This article presents a case study of monozygotic twins whose psychotypes significantly diverged despite genetic identity and similar upbringing. The hypothesis proposed links this divergence to differences in solar electromagnetic field (EMF) patterns during the critical window of brain development (18–100 days post-conception). The analysis uses actual solar activity data to map embryonic exposure and relate it to the maturation timeline of key brain structures involved in personality formation. One twin exhibits a stable, introverted engineering mindset; the other—a socially active, extroverted leadership-oriented profile. The difference correlates with transient spikes in solar activity corresponding to divergent timing of neurogenesis in prefrontal, cingulate, and limbic networks. This case supports the idea that EMF influences the assembly of axonal networks, shaping enduring cognitive-emotional patterns. The implications for neurodevelopmental theory and early diagnostics are discussed. Keywords: Solar EMF, geomagnetic field, psychotype, neurodevelopment, monozygotic twins, axonal network, personality formation, fetal window, prefrontal cortex, resonance