Something's happening here; what it is ain't exactly clear.

M.L. Kohut, D.A. McCann, D.W. Russell, D.N. Konopka, J.E. Cunnick, W.D. Franke, M.C. Castillo, A.E. Reighard, E. Vanderah, Aerobic exercise, but not flexibility/resistance exercise, reduces serum IL-18, CRP, and IL-6 independent of β-blockers, BMI, and psychosocial factors in older adults Brain Behavior and Immunity. ,vol. 20, pp. 201- 209 ,(2006) , 10.1016/J.BBI.2005.12.002

Rainer Rauramaa, Pirjo Halonen, Sari B. Väisänen, Timo A. Lakka, Arno Schmidt-Trucksäss, Aloys Berg, Ilkka M. Penttilä, Tuomo Rankinen, Claude Bouchard, Effects of Aerobic Physical Exercise on Inflammation and Atherosclerosis in Men: The DNASCO Study Annals of Internal Medicine. ,vol. 140, pp. 1007- 1014 ,(2004) , 10.7326/0003-4819-140-12-200406150-00010

DANA E. KING, PETER CAREK, ARCH G. MAINOUS, WILLIAM S. PEARSON, Inflammatory markers and exercise: differences related to exercise type. Medicine and Science in Sports and Exercise. ,vol. 35, pp. 575- 581 ,(2003) , 10.1249/01.MSS.0000058440.28108.CC

Earl S. Ford, Does exercise reduce inflammation? Physical activity and C-reactive protein among U.S. adults. Epidemiology. ,vol. 13, pp. 561- 568 ,(2002) , 10.1097/00001648-200209000-00012

DORON ARONSON, MURRAY A. MITTLEMAN, ANDREW J. BURGER, Interleukin-6 levels are inversely correlated with heart rate variability in patients with decompensated heart failure. Journal of Cardiovascular Electrophysiology. ,vol. 12, pp. 294- 300 ,(2001) , 10.1046/J.1540-8167.2001.00294.X

Kevin J. Tracey, The inflammatory reflex Nature. ,vol. 420, pp. 853- 859 ,(2002) , 10.1038/NATURE01321

I. Janszky, M. Ericson, M. Lekander, M. Blom, K. Buhlin, A. Georgiades, S. Ahnve, Inflammatory markers and heart rate variability in women with coronary heart disease Journal of Internal Medicine. ,vol. 256, pp. 421- 428 ,(2004) , 10.1111/J.1365-2796.2004.01403.X

Kevin J. Tracey, Physiology and immunology of the cholinergic antiinflammatory pathway Journal of Clinical Investigation. ,vol. 117, pp. 289- 296 ,(2007) , 10.1172/JCI30555

M. Rosas-Ballina, P. S. Olofsson, M. Ochani, S. I. Valdes-Ferrer, Y. A. Levine, C. Reardon, M. W. Tusche, V. A. Pavlov, U. Andersson, S. Chavan, T. W. Mak, K. J. Tracey, Acetylcholine-synthesizing T cells relay neural signals in a vagus nerve circuit. Science. ,vol. 334, pp. 98- 101 ,(2011) , 10.1126/SCIENCE.1209985

Senna A. Neumann, Shari R. Waldstein, John J. Sellers, Julian F. Thayer, John D. Sorkin, Hostility and distraction have differential influences on cardiovascular recovery from anger recall in women. Health Psychology. ,vol. 23, pp. 631- 640 ,(2004) , 10.1037/0278-6133.23.6.631