chirping, chattering, trilling, tweedling, murmuring, meowing, moaning, squeaking, hissing, yowling, howling, growling, and other modes of cat-human communication. Ecology: Leila Satari, Alba Guillén, Àngela Vidal-Verdú, and Manuel Porcar, for using genetic analysis to identify the different species of bacteria that reside in wads of discarded chewing gum stuck on pavements in various countries. Chemistry: Jörg Wicker, Nicolas Krauter, Bettina Derstroff, Christof Stönner, Efstratios Bourtsoukidis, Achim Edtbauer, Jochen Wulf, Thomas Klüpfel, Stefan Kramer, and Jonathan Williams, for chemically analyzing the air inside movie theaters, to test whether the odours produced by an audience reliably indicate the levels of violence, sex, antisocial behavior, drug use, and profanity in the movie the audience is watching. Economics: Pavlo Blavatskyy, for discovering that the obesity of a country’s politicians may be a good indicator of that country’s corruption perception. Medicine: Olcay Cem Bulut, Dare Oladokun, Burkard Lippert, and Ralph Hohenberger, for demonstrating that sexual orgasms can be as effective as decongestant medicines at improving nasal breathing. Peace: Ethan Beseris, Steven Naleway, and David Carrier, for testing the hypothesis that humans evolved beards to protect themselves from punches to the face. Physics: Alessandro Corbetta, Jasper Meeusen, Chung-min Lee, Roberto Benzi, and Federico Toschi, for conducting experiments to learn why pedestrians do not constantly collide with other pedestrians. Kinetics: Hisashi Murakami, Claudio Feliciani, Yuta Nishiyama, and Katsuhiro Nishinari, for conducting experiments to learn how mutual anticipation can contribute to self-organization in crowds. Entomology: John Mulrennan Jr, Roger Grothaus, Charles Hammond, and Jay Lamdin, for their research study “A New Method of Cockroach Control on Submarines”. Transportation: Robin Radcliffe, Mark Jago, Peter Morkel, Estelle Morkel, Pierre du Preez, Piet Beytell, Birgit Kotting, Bakker Manuel, Jan Hendrik du Preez, Michele Miller, Julia Felippe, Stephen Parry, and Robin Gleed, for determining by experiment whether it is safer to transport an airborne rhinoceros upside-down. 2022 The 32nd First Annual Ig Nobel Prize ceremony took place on Thursday, 15 September 2022, and was presented in a webcast format. Applied Cardiology: Eliska Prochazkova, Elio Sjak-Shie, Friederike Behrens, Daniel Lindh, and Mariska Kret, for seeking and finding evidence that when new romantic partners meet for the first time, and feel attracted to each other, their heart rates synchronize. Literature: Eric Martínez, Francis Mollica, and Edward Gibson, for analyzing what makes legal documents unnecessarily difficult to understand. Biology: Solimary García-Hernández and Glauco Machado, for studying whether and how constipation affects the mating prospects of scorpions.