http://psycnet.apa.org/?&fa=main.doiLanding&doi=10.1037/emo0000033
Stellar, Jennifer E.; John-Henderson, Neha; Anderson, Craig L.; Gordon, Amie M.; McNeil, Galen D.; Keltner, Dacher
Negative emotions are reliably associated with poorer health
(e.g., Kiecolt-Glaser, McGuire, Robles, & Glaser, 2002), but only
recently has research begun to acknowledge the important role of
positive emotions for our physical health (Fredrickson, 2003). We
examine the link between dispositional positive affect and one potential
biological pathway between positive emotions and health—proinflammatory
cytokines, specifically levels of interleukin-6 (IL-6). We hypothesized
that greater trait positive affect would be associated with lower
levels of IL-6 in a healthy sample. We found support for this hypothesis
across two studies. We also explored the relationship between discrete
positive emotions and IL-6 levels, finding that awe, measured in two
different ways, was the strongest predictor of lower levels of
proinflammatory cytokines. These effects held when controlling for
relevant personality and health variables. This work suggests a
potential biological pathway between positive emotions and health
through proinflammatory cytokines.
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