Evening smartphone exposure impairs sleep quality and next-day performance in elite soccer players: a randomized controlled trial.
Research
RF Safe Research Library
Jan 1, 2026
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…
No effects of power line frequency extremely low frequency electromagnetic field exposure on selected neurobehavior tests of workers inspecting transformers and distribution line stations versus controls
Research
RF Safe Research Library
Jan 1, 2014
This study evaluated whether occupational 50 Hz ELF-EMF exposure near transformers and distribution power lines affects performance on several computer-based neurobehavior tests. Spot measurements found some electric-field locations above a national occupational standard, while all magnetic-field spots were below the…
Pedestrians, vehicles, and cell phones.
Research
RF Safe Research Library
Jan 1, 2010
This study used an immersive virtual environment to examine how divided attention affects pedestrian street-crossing performance. Thirty-six participants crossed virtual streets while undistracted, conversing hands-free on a cell phone, or listening to music. Cell phone conversation was associated with a lower…
The Distracting Effects of a Ringing Cell Phone: An Investigation of the Laboratory and the Classroom Setting.
Research
RF Safe Research Library
Jan 1, 2009
This paper reports four experiments examining how a ringing cell phone affects cognitive performance in laboratory tasks and a college classroom lecture. In the lab, auditory conditions (including a standard cell phone ring) produced slower responses than silence, with slower recovery in the ring and song conditions.…