AHRQ Report

The article in the Journal of Alternative and Complementary Medicine (2008) makes a few criticisms of the 2007 Alberta report as follows; It mixed mental techniques - meditation - with those that had a more physical component such as Tai Chi, it didn't distinguish well enough between studies with and without good controls, criticised studies for not being double blind when that is very tricky with these sorts of experiments, and it did not look at effects of meditation on smoking, alcohol and drug abuse.