Mindfulness-Meditation-Based Pain Relief Is Not Mediated by Endogenous Opioids.
Zeidan F, Adler-Neal AL, Wells RE, Stagnaro E, May LM, Eisenach JC, McHaffie JG, Coghill RC. Mindfulness-Meditation-Based Pain Relief Is Not Mediated by Endogenous Opioids. J Neurosci. 2016 Mar 16; 36(11):3391-7.