A new report by Gallup finds a significant correlation between well-being and religiosity:

The most religious Americans show the highest levels of well-being as measured by factors ranging from physical and emotional health to self-evaluations of life to perceptions of work environment, according to a Gallup report released Thursday.

Americans for whom religion is an important part of everyday life and who attend religious services roughly once a week or more score an average 68.7 on a well-being index developed by Gallup and Healthways, a health consulting company.

Americans who are moderately religious or who are nonreligious, meanwhile, average 64.2 on the Gallup-Healthways well-being index.

Gallup Editor-in-Chief Frank Newport says that the gap is significant because there are typically few differences in the well-being index between Americans from different demographics.