It is known that anger expression can be associated with increases in cortisol secretion and lowered immune function of the sort seen with other kinds of stress.
Researchers from Ohio State University have examined the effect of anger on wound healing by following close to 100 community volunteers who agreed to receive a standardized blister wound on their non-dominant forearm.
They found that wounds of those who expressed little anger or displayed anger in a controlled fashion healed more rapidly than the hotheads. The hotheads exhibited higher cortisol reactivity during the blistering procedure. This enhanced cortisol secretion was in turn related to longer time to heal.
The data says it all; wound healing is faster for subjects with high anger control. So the next time you get a wound, remember this study and RELAX.
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