Katherine Jacobson didn't set out to revolutionize pain management—but her randomized controlled trial at the University of Maryland School of Medicine has done something quietly radical: it's shown that five minutes of in-person prayer can meaningfully reduce both pain and anxiety in primary care patients, even in a secular medical setting.
The study enrolled 180 patients from a university family medicine practice, all reporting clinically significant pain or anxiety. After their medical appointments, half received five minutes of Christian intercessory prayer from a trained volunteer—including laying-on-of-hands—while the other half listened to soft music as a control. The difference in outcomes was striking.
Prayer recipients reported significantly greater pain reductions immediately after the session and at the two-week follow-up. The anxiety effects were even more durable: participants showed meaningful reductions immediately after treatment, and these benefits persisted at both the two-week and six-week follow-ups, suggesting the effects lasted at least a month and a half. Ninety-seven percent of those who received prayer said they would be neutral, agreeable, or strongly agreeable to having it available as part of future visits.
What matters most, though, is who benefited most. Black participants reported larger reductions in both pain and anxiety following prayer—a finding the researchers describe as particularly meaningful given well-documented inequities in pain treatment and the fact that prayer is already the most commonly used form of complementary medicine among Black Americans. When a medical intervention aligns with how a patient already finds meaning and comfort, the impact multiplies.
This trial matters because prayer remains America's most popular complementary medicine: 43% of Americans use it, with 62% of that group identifying as Christian. Yet rigorous clinical studies of in-person intercessory prayer have been remarkably scarce. This study, published in the Annals of Family Medicine, is among the first well-powered randomized controlled trials of proximal intercessory prayer conducted in a standard primary care setting—not in a prayer-focused context, but in the kind of clinic where most Americans receive care.
"The prayer intervention was effective regardless of the patient's faith or no faith," said Joshua W. Brown, co-author and Professor of Psychological and Brain Sciences at Indiana University. His own journey deepened this research: diagnosed with a brain tumor over 20 years ago as he was launching his neuroscience career, he began investigating whether prayer produces measurable changes in brain function. Years of studying healing prayer around the world culminated in his recent book "Proving a Miracle."
Jacobson's conclusion is measured but clear: "Proximal intercessory prayer was safe, effective, and well-received as complementary treatment for pain and anxiety. It may be a low-cost, non-pharmacologic, effective adjunct to standard care with particular relevance for underserved populations." In a healthcare system often stretched too thin, especially for those with the least access to expensive interventions, the arrival of a validated, free, five-minute tool offers unexpected hope.
The researchers acknowledge limitations—the study population was predominantly Black, female, and low-income, and future research should isolate prayer's specific effects from the benefits of human presence and touch. Yet they've opened a door that was previously shut: the possibility that modern medicine can make space for what billions of people already know to be true.