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ShortHand: Spontaneous Human Combustion

Jun 30, 2026 · 23m

Summary

This episode investigates the phenomenon of spontaneous human combustion, using the infamous case of Mary Reeser as a starting point. The hosts explore historical accounts and scientific explanations, debunking the myth of internal ignition in favor of the "wick effect," where body fat fuels a slow-burning fire. They conclude that while humans don't spontaneously ignite, factors like smoking, alcohol, and immobility can create conditions for such tragic, contained fires.

Topics discussed

Sponsor: Progressive Insurance The infamous lonely leg image The case of Mary Reeser Defining spontaneous human combustion Historical cases of suspected SHC Sponsors: Progressive and Quince Sponsors: Progressive and Quince (Repeat) Literary and historical origins of SHC The wick effect explanation Scientific analysis and the pig experiment Conclusion: Why humans don't spontaneously combust Outro and sponsor ads
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