When pain becomes pleasurable
[caption id="attachment_1315" align="alignleft" width="575"] Jim demonstrates a face punch with Chet. Photo courtesy of Jim Dougherty[/caption] Studies suggest that the brain chemical dopamine, the chemical...
[caption id="attachment_1315" align="alignleft" width="575"] Jim demonstrates a face punch with Chet. Photo courtesy of Jim Dougherty[/caption] Studies suggest that the brain chemical dopamine, the chemical...