You're citing from one meta study out of plenty. Also, it's ten years old. Many things have happened since then, especially things to address those weaknesses –

You're citing from one meta study out of plenty. Also, it's ten years old. Many things have happened since then, especially things to address those weaknesses – MBSR (http://en.wikipedia.org/wiki/Mindfulness-based_stress_reduction http://en.wikipedia.org/wiki/Mindfulness-based_stress_reduct...) has been developed further, and is a method of meditation that is in part designed so that you can do science on it. Looking at a 2013 report (http://www.ncbi.nlm.nih.gov/pubmed/23796855 http://www.ncbi.nlm.nih.gov/pubmed/23796855), results are quite different. Or this interview (http://www.washingtonpost.com/news/inspired-life/wp/2015/05/26/harvard-neuroscientist-meditation-not-only-reduces-stress-it-literally-changes-your-brain/ http://www.washingtonpost.com/news/inspired-life/wp/2015/05/...) showing potential physical changes in the brain. Furthermore, meditation isn't about objective health gains to many people. It's about living in a different way, in a different state.