Correlation between human activities/conditions and vagus nerve function.
| Activity/disease | Vagus nerve function | Reference |
| Aerobic exercise | Increase | Sandercock et al., 2005; Jae et al., 2009; Earnest et al., 2012 |
| Meditation | Increase | Peng et al., 2004 |
| Acupuncture | Increase | Haker et al., 2000; Lee et al., 2011; |
| Biofeedback training | Increase | Cowan et al., 1990; Nolan et al., 2005 |
| Relaxation training | Increase | Sakakibara et al., 1994; Terathongkum and Pickler, 2004 |
| Diet-supplemented fish oil or olive oil | Increase | Christensen et al., 1999; Holguin et al., 2005; Berbert et al., 2005 |
| Sepsis | Depressed function coupled to impaired survival | Pontet et al., 2003; Barnaby et al., 2002; Kessler et al., 2006 |
| Acute myocardial infarction | Depressed function coupled to impaired survival | Lanza et al., 1998, 2006 |
| Cardiovascular disease | Decrease | Villareal et al., 2002 |
| Rheumatoid arthritis, inflammatory bowel disease, SLE, sarcoidosis | Decrease | Lindgren et al., 1993; Stein et al., 1996; Laversuch et al., 1997; Evrengül et al., 2004 |
| Head trauma | Decrease | Biswas et al., 2000; Su et al., 2005 |
| Depression | Decrease | Kemp et al., 2010; |
| Obesity | Decrease | Minami et al., 1999; Akehi et al., 2001; Facchini et al., 2003 |
| Aging | Decrease | Zulfiqar et al., 2010 |
| Activity/disease | Vagus nerve function | Reference |
| Aerobic exercise | Increase | Sandercock et al., 2005; Jae et al., 2009; Earnest et al., 2012 |
| Meditation | Increase | Peng et al., 2004 |
| Acupuncture | Increase | Haker et al., 2000; Lee et al., 2011; |
| Biofeedback training | Increase | Cowan et al., 1990; Nolan et al., 2005 |
| Relaxation training | Increase | Sakakibara et al., 1994; Terathongkum and Pickler, 2004 |
| Diet-supplemented fish oil or olive oil | Increase | Christensen et al., 1999; Holguin et al., 2005; Berbert et al., 2005 |
| Sepsis | Depressed function coupled to impaired survival | Pontet et al., 2003; Barnaby et al., 2002; Kessler et al., 2006 |
| Acute myocardial infarction | Depressed function coupled to impaired survival | Lanza et al., 1998, 2006 |
| Cardiovascular disease | Decrease | Villareal et al., 2002 |
| Rheumatoid arthritis, inflammatory bowel disease, SLE, sarcoidosis | Decrease | Lindgren et al., 1993; Stein et al., 1996; Laversuch et al., 1997; Evrengül et al., 2004 |
| Head trauma | Decrease | Biswas et al., 2000; Su et al., 2005 |
| Depression | Decrease | Kemp et al., 2010; |
| Obesity | Decrease | Minami et al., 1999; Akehi et al., 2001; Facchini et al., 2003 |
| Aging | Decrease | Zulfiqar et al., 2010 |