Vaping: Does It Really Cause Cancer?

This episode of Science Vs tackles the explosive claim that vaping causes cancer, sparked by a controversial new review paper suggesting e-cigarettes are as dangerous as traditional cigarettes. Host Wendy Zuckerman and senior producer Rose Rimler dissect the science, revealing a deep divide among experts. While the paper cites evidence from lab studies, animal trials, and biomarker data to argue vaping likely causes lung and oral cancer, many scientists dismiss it as overstated and methodologically flawed—especially the extreme exposure conditions in rodent studies and the lack of conclusive human data. The hosts emphasize that while vaping may pose health risks on its own, it remains significantly safer than smoking, with 90% of surveyed scientists agreeing. They also explore the role of Big Tobacco in funding research and spreading doubt, undermining public trust. Ultimately, the episode concludes that while vaping isn't harmless, it’s still a better alternative for smokers trying to quit—though non-smokers should avoid it entirely. The episode ends with a reflective nod to the complexity of science and the importance of context in public health messaging.