Americans are one of the most religious people in the western world. And with good reason. In the United States, attending religious services at least once a week is a strong predictor of happiness.
A 2006 report by the Pew Research Center found that 43 percent of people who attend church at least once a week reported being "very happy" while only 26 percent of those who attend "seldom or never" said the same.
It doesn't matter which faith you profess. The key is regular attendance.
Why should being religious bring us so much happiness?