Abstract Background/Objective: Prolonged exposure to electromagnetic fields from electronic devices is known to alter brain wave activity and may contribute to symptoms such as fatigue, stress and impaired concentration. This study was conducted to evaluate the effect of chi pendant on brain wave patterns in healthy individuals exposed to a controlled electromagnetic field stressor. Methods: 15 healthy adults were enrolled. Each participant underwent EEG recordings across 4 standardized sessions (baseline, EMF stressor alone, pendant alone and combined EMF with pendant) on day 1 (before extended wear) and again after wearing the assigned pendant for 3 days (day 5), followed by a washout and crossover with repeat testing on day 9 and 13. The primary outcome measures were the amplitudes of alpha (α), beta (β), gamma (Γ) and theta (Θ) frequency bands. Paired t‑tests were used for statistical comparisons. Findings: Before extended wear, the active pendant was associated with significant differences in β frequency during Sessions 2 and 3 and across all 4 frequencies during combined EMF and pendant exposure (Session 4). After 3 days of wearing, significant differences shown in Θ frequency during EMF exposure alone (Session 2) and in α, β and Θ frequencies during combined exposure (Session 4). No adverse events were reported. Novelty: This study shows that wearing a simple pendant which works as long as it is worn, can change brain wave activity when a person is exposed to electromagnetic fields. The results showed that brain waves which are responsible for relaxation (alpha and theta) increased, while those which are responsible for high mental activity (gamma) decreased. This suggests the pendant may help the brain stay balanced during electromagnetic field exposure. These findings open the door for more research on wearable devices that could protect against the effects of electromagnetic fields. Keywords: Chi Pendant, Electromagnetic field, EEG (Electroencephalogram), Amezcua Resonance Technology, Milligauss
Shriramji et al. (Tue,) studied this question.