“…Victims of traditional bullying have been found to be at risk of poor health symptoms, internalizing problems, and suicidality (e.g., Kim & Leventhal, 2008;Reijntjes, Kamphuis, Prinzie, & Telch, 2010). Among adverse consequences of being victimized there is also experiencing negative emotional reactions (e.g., Rodríguez-Hidalgo, Ortega, & Monks, 2015), linked to the feeling of being defenseless and of having a scarce control of the situation (Caravita, 2007;Graham & Juvonen, 2001). This may affect heart rate variability in witnesses (Barhight, Hubbard, & Hyde, 2013), and the levels of distress, depression and worries for at least some victims of traditional bullying (Ortega, Elipe, Mora-Merchán, Calmaestra, & Vega, 2009).…”