Looks like not really, at least not for everyone.

https://www.theguardian.com/lifeandstyle/2016/jan/23/is-mindfulness-making-us-ill

https://www.mindful.org/trouble-mindfulness-apps/

https://www.ncbi.nlm.nih.gov/pubmedhealth/behindtheheadlines/news/2017-05-26-does-meditation-carry-a-risk-of-harmful-side-effects/

http://www.huffingtonpost.ca/2017/05/26/meditation-negative-effects_n_16818312.html

Cover image:
Illustration: Nick Lowndes for the Guardian