Vol. 27 (1-2) 2006 Neuro endocrinology letters

Age-dependent association of exposure to television screen with children's urinary melatonin excretion?

OBJECTIVES: Changes in magnetic field are associated with a decrease in nocturnal urinary melatonin excretion. Television screens emit low and very low frequency electromagnetic waves (radiofrequencies and light) and exposure to them may be associated with a decrease in 24-hour melatonin in children's urine. Design and setting. An obser.....