Playing a violent television game affects heart rate variability.

@article{Ivarsson2009PlayingAV,
  title={Playing a violent television game affects heart rate variability.},
  author={Mathias Ivarsson and Martin Joel Anderson and Torbj{\"o}rn {\AA}kerstedt and Frank I E Lindblad},
  journal={Acta paediatrica},
  year={2009},
  volume={98 1},
  pages={
          166-72
        }
}
OBJECTIVE To investigate how playing a violent/nonviolent television game during the evening affects sympathetic and parasympathetic reactions during and after playing as well as sleep quality during the night after playing. SUBJECTS AND METHODS In total, 19 boys, 12-15 years of age, played television games on two occasions in their homes and participated once without gaming. Heart rate, heart rate variability (HRV) and physical activity were measured during gaming/participating and the night… CONTINUE READING
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