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 and circadian phase delay) to broader vulnerability of biological timing systems, and proposes an “S4–Mito–Spin” framework involving ion-channel timing noise, mitochondrial oxidative stress amplification, and radical-pair/spin chemistry. It also cites a 2018 PLOS Biology study as mechanistic support for cryptochrome-dependent ROS changes under weak pulsed EMF exposure, while presenting these points as converging evidence rather than definitive proof of harm in real-world exposures.