

The Science of Smiling & Benefits To Pain Relief

A white paper on how the physical act of smiling can have a positive impact on pain relief in athletes.
When it comes to pain relief for athletes, we usually think of ice baths, foam rollers, or over-the-counter meds. But what if one of the most powerful tools for managing physical discomfort doesn’t come from a pharmacy—or even a gym? What if it’s something as simple, natural, and accessible as a smile?
This white paper, presented by Goody’s® Pain Relief, dives into the surprising science of how smiling—yes, smiling—can actually reduce pain. For athletes pushing their physical limits, like marathon runners, discomfort is part of the journey. Whether it’s muscle soreness, cramping, or fatigue, “powering through” is a familiar expression – and there’s little to be done in-the-moment. But a growing body of research suggests that the act of smiling might offer an unexpected boost, before the recovery efforts even begin.
This paper examines published literature spanning 20 years that indicates smiling may in fact help with pain relief. The connection is both psychological and physiological: smiling activates the release of feel-good neurotransmitters like dopamine, serotonin, and endorphins, all of which play a role in reducing the perception of pain. It also engages the parasympathetic nervous system, helping the body relax and counteract stress responses that often amplify pain.
For athletes, the implications are real: smiling through a tough workout or during recovery isn’t just about keeping a positive attitude—it may actually help you feel better, faster. From enhanced emotional resilience to measurable physical comfort, the science is clear: when it comes to pain relief, a smile can go a long way.