Despite how many Americans pray and how often, scientific research on the health benefits is limited. But based on what science has shown, prayer might help reduce stress, loneliness and fear.

For the first time this Ramadan, the Muslim call to prayer is being broadcast from mosques onto the streets of Astoria, Queens.

For the National Day of Prayer, we rounded up survey data on Americans’ prayer habits, as well as historical instances of prayer intersecting with the government.