05/02/2026
Laughter is not just a feel good extra, there is strong evidence that it supports mental health in measurable ways.
Clinical studies show that laughter can reduce cortisol, the body’s main stress hormone, by up to 30%. High cortisol is closely linked to anxiety, low mood and emotional exhaustion, particularly during prolonged stress.
Research published in Behaviour Research and Therapy found that structured laughter based interventions reduced symptoms of depression and anxiety by around 20 to 25%. The impact was strongest when laughter happened in group settings rather than alone.
Social laughter matters. Research led by the University of Oxford found that people who laugh together report stronger social bonds, with laughter increasing pain tolerance by up to 10%. In psychology, pain tolerance is often used as a proxy for endorphin release, which plays a key role in mood regulation and resilience.
There are physical effects too. Studies show that laughter increases endorphins and dopamine, chemicals linked to pleasure, motivation and connection. The relaxation response that follows a good laugh can last between 30 and 45 minutes, helping the nervous system reset and reducing stress beyond the moment itself.
This is why events like the Leicester Comedy Festival matter.
They are not just nights out. They are shared experiences that reduce stress, strengthen connection and offer a genuine mental break for people who may be carrying far more than they show.
In a city where demand for mental health support continues to rise, we should not underestimate the protective role of joy, culture and community.
What shows are you seeing at this year’s festival?