A study from the University of Basel, Switzerland, found that the more laughter during the day, the less affected by stressful events.
While natural, spontaneous laughter has a stronger effect, there is evidence that fake laughter can reduce the reaction to stress, known as movement that creates emotion theory.
Laughing, and moving the eyebrows up and down to expel air from the lungs, turns on the brain’s endorphin system, says Robin Dunbar, professor emeritus of evolutionary science and psychology at Oxford University. “Endorphins make you relaxed and happy and seem to lower the stress hormone cortisol,” Dunbar added. According to Okaz
Prof Sophie Scott, a neuroscientist at University College London, says it’s possible that a very complex network of brain regions operates when laughing. “But we clearly see that the hypothalamus is active, and we know that it has a role in stress.”
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