William Beaumont and Alexis St. Martin stand at the center of one of the most famous and ethically troubling stories in the history of human experimentation. After an accidental musket blast on Mackinac Island in 1822 tore through St. Martin's ribs, lung, diaphragm and stomach, Army surgeon Beaumont saved his life. The wound healed into a permanent gastric fistula - a living opening through which Beaumont could observe human digestion directly.

Beginning in 1825, Beaumont tied food to silk thread and lowered it into St. Martin's stomach, extracted gastric juice through tubes, measured temperature and recorded the effects of illness, exercise and emotional disturbance. The work culminated in his 1833 book Experiments and Observations on the Gastric Juice, and the Physiology of Digestion and helped transform the science of digestion. It also documented pain, weakness, vertigo and distress, sometimes followed by a decision to continue.

Beaumont was not only St. Martin's doctor. He was also his employer, provider and investigator. In 1832, a labor agreement called St. Martin a "covenant Servant" and required him to "obey, suffer and comply" with reasonable and proper experiments. This episode examines that contract, the imbalance behind it and the limits of consent without erasing St. Martin's agency. He refused surgery, returned to Canada, negotiated payment, left repeatedly, permitted some later examinations and ultimately rejected Beaumont's final efforts to bring him back.

Terrifying & True separates the documented medical history from later sensational claims that Beaumont deliberately preserved the opening or kept St. Martin as a literal prisoner. The surviving record is more complicated: lifesaving care, groundbreaking science, economic dependence, negotiated participation and a physician who increasingly spoke of recovering control over another man's body.

Inside this episode:
· The 1822 musket accident on Mackinac Island
· Alexis St. Martin's permanent gastric fistula
· Food-on-thread tests and gastric juice collection
· The 1832 "obey, suffer and comply" labor contract
· Consent, dependence and St. Martin's repeated departures
· The later report of an eight-foot grave and efforts to obtain his stomach after death

Beaumont's work changed medicine. But when a scientific breakthrough depends on another person's body, labor and pain, who owns the discovery - and who gets remembered as fully human?

We're telling that story tonight.

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