Dr Harold Koenig Researchi

comprehensive review of research on religion and both mental health and physical health
original data-based quantitative research published in peer-reviewed journals between 1872 and 2010
examining relationships with both positive and negative mental and physical health behaviors and outcomes.
Identified over 1,200 quantitative original data-based publications during the period 1872 - 2000 and 2100 studies from 2000 - 2010. TOTAL more than 3300 studies
In order to assess the methodological quality of the studies, quality ratings were assigned on a scale from 0 (low) to 10 (high). Scale 7-10 are good quality studies

NEGATIVE ASPECTS of RELIGION/Mental Health

judice, and the exclusion of others
gain power and control over vulnerable individuals (as seen in cults)
foster rigid thinking and obsessive practices; lead to anxiety, fear
excessive guilt over minor infractions (and even self-mutilation in some cases)
produce psychosocial strains due to failure to live up to high religious standards
lead to escape from dealing with family problems (through excessive involvement in religious or spiritual activities)
delay diagnosis and effective mental health care (due to antagonistic relationships with mental health professionals)