“…The general prediction that threat and other psychological stressors evoke decreases in vmHRV has extensive support (Balzarotti et al, 2017;Kim, Cheon, Bai, Lee, & Koo, 2018). For example, various social-evaluative threats evoke acute decreases in vmHRV (Allen & Friedman, 2016;Bosch et al, 2009), as do social interactions that involve threats to social status (Cloutier, Norman, Li, & Berntson, 2013;Cundiff, Smith, Baron, & Uchino, 2016;Kraus & Mendes, 2014), interpersonal conflicts (D'Antono, Moskowitz, Miners, & Archambault, 2005), and effortful attempts to influence interaction partners (Nealey, Smith, & Uchino, 2002;Smith, Ruiz, & Uchino, 2000). Worry and rumination evoke decreases in vmHRV (Ottaviani et al, 2016).…”