Laugh! Burst out laughing! Cry with laughter! Our body reacts extremely to the triggering of the phenomenon of laughter. But what actually happens, physically, chemically when we laugh? And is it really, as we believe, excellent for our health? With the help of hilarious experiments, Matière Grise has monitored laughers to understand, precisely, what happens in a body, a heart, a muscle, a brain, in short, an individual who laughs.
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