Office for Science and Society - Separating Sense from Nonsense /oss/articles/rss en Supermodel Heidi Klum Floats In Air and Blows Hot Air /oss/article/critical-thinking-health-and-nutrition-pseudoscience/supermodel-heidi-klum-floats-air-and-blows-hot-air <p>Let’s start with the floating illusion. I would hope that if anyone sees a person suspended in mid-air, they realize that the law of gravitation has not been suspended and that some mechanism hidden from the audience is at work. The history of this illusion traces back to early 19th century India, but it was French magician Robert-Houdin who popularized it by adding a clever twist. Ether had just been introduced as an anesthetic in 1846 and Robert-Houdin cleverly wove the discovery into his act.</p> Wed, 06 Aug 2025 23:19:00 +0000 Joe Schwarcz PhD 11388 at /oss This French Physician’s Career Could Be Defined by the Word ‘Ectoplasm’ /oss/article/history-did-you-know/french-physicians-career-could-be-defined-word-ectoplasm <p><em>This article was first published in <a href="https://www.montrealgazette.com/opinion/article1066186.html">The Montreal Gazette.</a></em></p> Fri, 01 Aug 2025 16:05:06 +0000 Joe Schwarcz PhD 11386 at /oss Don’t Play Yo-Yo with Your Weight: The ‘Post-Ozempic’ Rebound /oss/article/medical/dont-play-yo-yo-your-weight-post-ozempic-rebound <p>Body weight is determined by a complex regulatory system that is necessary to ensure survival of the species – too little food reduces body weight but, extreme caloric restriction also decreases fertility and, ultimately, can result in death. Preservation of body weight is, therefore, an imperative of species survival. However, excess body weight contributes to chronic diseases, such as obesity and Type 2 diabetes, as well as fatty liver and cardiovascular diseases.</p> Fri, 01 Aug 2025 10:00:00 +0000 Patricia Brubaker, Ph.D., F.R.S.C. 11381 at /oss Liquid Nitrogen Tattoos /oss/article/student-contributors-health-and-nutrition-general-science/liquid-nitrogen-tattoos <p>Body modifications have been around for a very long time. <a href="https://www.smithsonianmag.com/history/tattoos-worldwide-history-144038580/" rel="noreferrer noopener" target="_blank">Tattoos and piercings</a> were found on a frozen mummy dating back to <a href="https://www.smithsonianmag.com/history/tattoos-worldwide-history-144038580/" rel="noreferrer noopener" target="_blank">3000 B.C.E</a>. In many countries, these modifications have cultural significance, yet they have also been introduced in western culture as a form of self-expression. But sometimes, we can get carried away.  </p> Thu, 31 Jul 2025 18:18:29 +0000 Angelina Lapalme 11384 at /oss Meet the New Rogan. Same as the Old Rogan. /oss/article/critical-thinking-pseudoscience/meet-new-rogan-same-old-rogan <p>It looks as if masculinity itself has exploded into the room.</p> Fri, 01 Aug 2025 10:00:00 +0000 Jonathan Jarry M.Sc. 11385 at /oss Betel Nuts /oss/article/health-and-nutrition/betel-nuts <p>The first time I heard of betel nuts was in 1991 at a performance of Miss Saigon at the Broadway Theatre in New York. This was Claude-Michel Schonberg and Alain Boublil’s second hit musical after 1985’s phenomenally successful Les Misérables. It is a loose adaptation of Puccini’s Madam Butterfly, but instead of being set in Japan, the story unwinds in Saigon during the Viet Nam War. In the second act, a sleazy night-club hustler known as the “engineer” belts out “My American Dream,” a song with the following lyrics:</p> Wed, 30 Jul 2025 10:00:00 +0000 Joe Schwarcz PhD 11380 at /oss A Peashooter Will Not Bring Down a Charging Rhino /oss/article/critical-thinking-pseudoscience/peashooter-will-not-bring-down-charging-rhino <p><em>This article was first published in <a href="https://www.montrealgazette.com/opinion/columnists/article1053465.html">The Montreal Gazette</a>.</em></p> <p>“A gesture as effective as sending out a boy with a peashooter to bring down a rhinoceros.”</p> Fri, 25 Jul 2025 17:01:49 +0000 Joe Schwarcz PhD 11355 at /oss Ultrasound During Pregnancy: Sound Advice or Sound the Alarm? /oss/article/medical-critical-thinking-student-contributors/ultrasound-during-pregnancy-sound-advice-or-sound-alarm <p>Let’s be honest—pregnancy is basically a nine-month exercise in overthinking. Is that sushi safe? Should I be sleeping on my left side? And what, exactly, is in prenatal vitamins anyway? Somewhere on that ever-expanding list sits the ultrasound: a routine, widely used tool that some corners of the internet have started side-eyeing with suspicion.</p> Fri, 25 Jul 2025 10:00:00 +0000 Sophie Tseng Pellar BSc 11353 at /oss Shedding a light on shedding: The Science of Telogen Effluvium /oss/article/medical-critical-thinking-student-contributors/shedding-light-shedding-science-telogen-effluvium <p>It started with a few extra hairs: in my brush, on my bathroom floor, strewn across my pillow. Odd, but nothing too alarming, women shed hair all the time. But then there were more. They were dispersed across my computer at work and would fall into my hands at the slightest tug. I began to spiral: could others see them too? I swore I could feel each strand of hair popping off my scalp and drifting down my back.</p> Fri, 25 Jul 2025 10:00:00 +0000 Ana Sophia Rashid-Cocker BSc 11354 at /oss Ozempic-Induced Blindness? A Measured Response /oss/article/medical-critical-thinking/ozempic-induced-blindness-measured-response <p>In certain corners of the Internet, the discourse over Ozempic is terrifying. “But the FDA says that [<i>sic</i>] inject Gila Monster venom weekly into yourself is healthy,” one commentator sarcastically declares. “Are they lying?”</p> Fri, 25 Jul 2025 10:00:00 +0000 Jonathan Jarry M.Sc. 11352 at /oss