Marketplace has done an interesting investigation on those types of mind games. http://www.cbc.ca/marketplace/episodes/2014-2015/brain-training-mind-games http:

Marketplace has done an interesting investigation on those types of mind games. http://www.cbc.ca/marketplace/episodes/2014-2015/brain-training-mind-games http://www.cbc.ca/marketplace/episodes/2014-2015/brain-train...