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This randomized controlled crossover trial in 16 male elite soccer players compared two hours of smartphone use before bedtime with magazine reading. Five consecutive nights of pre-bedtime smartphone use significantly worsened multiple sleep metrics and increased sleepiness. The study also reports deteriorations in…

This cross-sectional study surveyed 2,317 college students to examine associations between smartphone addiction and sleep quality. Smartphone addiction was associated with poorer sleep quality, and mediation analyses indicated that higher perceived stress and lower health-promoting lifestyle scores partially…

This secondary analysis of a nationally representative Korean adolescent survey examined bidirectional associations between smartphone overdependence and anxiety. In adjusted models, high risk for smartphone overdependence was associated with higher odds of anxiety, and severe anxiety was associated with higher odds…

This 30-day daily diary study of 104 first-year undergraduates in China examined links between problematic smartphone use (PSU) and disengagement at within- and between-person levels. The analyses reported bidirectional next-day associations, where higher-than-usual PSU predicted higher-than-usual disengagement and…

A laboratory experiment exposed embryos of three benthic egg-laying marine species to realistic electromagnetic fields generated by an alternating-current subsea power cable set-up (magnetic field 4–6 μT). Subtle effects were reported for Scyliorhinus canicula and Loligo vulgaris, including faster growth and…

This engineering/simulation study evaluates tissue SAR from a smartphone operating under single-frequency versus combined (simultaneous 4G and 5G) RF exposure scenarios using multi-pose human models. It reports that peak SAR in various tissues under multi-frequency exposure was 1.02 to 15.85 times higher than under…

RF Safe argues that the established term “electromagnetic hypersensitivity” (EHS) should not be replaced by the newer label “EMR Syndrome,” claiming the rebranding fragments research and weakens advocacy. The piece frames EHS as a continuity-based concept tied to reported symptoms in EMF-rich environments and…

RF Safe argues that red blood cell (RBC) “rouleaux” (stacking/aggregation) could be a visible, testable endpoint for investigating potential short-term physiological effects from wireless device exposure. The post highlights a 2025 report by Brown & Biebrich describing ultrasound observations interpreted as…

RF Safe founder John Coates publishes an open letter urging YouTuber MrBeast (Jimmy Donaldson) to make any potential “Beast Mobile” offering explicitly child-protective and “Li‑Fi compatible,” arguing that phones carried close to the body could scale long-term RF exposure among children. The letter frames current…

RF Safe argues that non-native electromagnetic fields (EMFs) can affect biology through timing and redox mechanisms even without tissue heating, framing this as a challenge to common safety narratives focused on thermal effects. The post links circadian disruption (citing a 2025 Frontiers in Psychiatry paper on ADHD…

RF Safe argues that companies marketing wireless connectivity to children should adopt a precautionary, “ethical connectivity” approach rather than relying on existing U.S. RF exposure rules. The piece claims current FCC guidelines are outdated and cites a 2021 D.C. Circuit decision criticizing the FCC’s retention of…

RF Safe founder John Coates outlines a 2026 advocacy plan focused on increasing enforcement of U.S. federal radiation-control law, pushing consumer technology toward Li‑Fi as a safer baseline for children, and demanding accountability from companies marketing wireless products to children. The post argues that…

An RF Safe commentary argues that persistent, pulsed “non-native” RF electromagnetic noise can disrupt biological “timing coherence,” leading to downstream “fidelity losses,” particularly in electrically active tissues. It also emphasizes that smartphones are adaptive RF systems that change transmit power and…