Researchers investigated the air in movie theaters to learn how to predict the level of excitement in the show being watched. The revealing chemical patterns exhaled in this “crowd breath” are most clearly noted during suspenseful scenes in movies, and are consistent across multiple viewing audiences. The scientists say the rise in both CO2 and isoprene are a result of the accelerated breathing induced by a suspenseful movie scene.
May 2016, phys.org
Jonathan Williams et al. Cinema audiences reproducibly vary the chemical composition of air during films, by broadcasting scene specific emissions on breath, Scientific Reports (2016). DOI: 10.1038/srep25464
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