Authored By:
Mahdavi SM, Sahraei H, Yaghmaei P, Tavakoli HThis is an animal study that looked into the effect of extremely low frequency (ELF) magnetic fields (MF) on behavioural, hormonal, and metabolic changes in rats. In the study, rats were exposed to a 0.1 mT magnetic field at frequencies of 1 and 5 Hertz (Hz), for a period of up to 21 days. ELF-MF exposure did not alter body weight, or food and water intake. There were different effects observed between the exposure at 1 and 5 Hz on two stress hormones. The exposure at 5 Hz also showed increased activities in dopamine-related behaviour. The authors concluded that the effects of ELF-MF on hormonal and behavioural responses may differ depending on the frequency and time of exposure.
Published In:
Biomol Ther (Seoul) 2014; 22 (6): 570 - 576In animals, the possibility that exposure to ELF fields may affect neurobehavioral function has been explored by a number of different studies and these have been reviewed by the World Health Organization (WHO, 2007). The review by WHO found no consistent effects of ELF fields in stress-related hormones of the pituitary-adrenal axis in mammals, with the possible exception of transient (minutes duration) stress following the onset of ELF electric field exposure at levels significantly above perception thresholds. Furthermore most studies that investigated the effects of ELF fields in hormones involved in controlling metabolic activity found no effect.
