Kumari K, Koivisto H, Viluksela M, Paldanius KMA, Marttinen M, Hiltunen M, Naarala J, Tanila H, Juutilainen J

This study fills a critical gap in our understanding of intermediate frequency magnetic fields, the type you encounter from electronic article surveillance systems in stores and induction cooking surfaces. The science demonstrates that 7.5 kHz magnetic fields at 120 μT can impair memory formation and trigger inflammatory responses in the hippocampus, the brain's learning center. What makes this particularly concerning is that 120 μT represents exposure levels you might experience standing very close to some induction cooktops or security systems. The reality is that we're increasingly surrounded by these intermediate frequencies, yet regulatory guidelines remain largely based on thermal effects rather than the subtle neurological impacts this research reveals. The finding that lower exposure levels (12 μT) showed no effect suggests a threshold exists, but more research is needed to establish safe exposure limits for the intermediate frequency range that's becoming ubiquitous in modern environments.