Welcome to M⁴: Medicine, Mystery, Mayhem... and Sometimes Murder!
M⁴: Medicine, Mystery, Mayhem... and Sometimes Murder

M⁴: Medicine, Mystery, Mayhem... and Sometimes Murder

Hosted by two seasoned RNs with over 45 years of combined experience and a friendship nearly as long, the M⁴ Podcast dives into the strange, shocking, and sometimes spine-chilling side of medicine. Each episode explores real cases, bizarre conditions, historical medical mysteries, and the occasional true crime, with expert insight, unfiltered commentary, and a touch of gallows humor.

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Recent Episodes

49
Aug. 25, 2026

Ep. 49: Then I Saw Her Face

Most people can barely recall a stranger's face after a few minutes. Then there are the outliers, the small slice of the population who can pick a face out of a crowd years later, from a single glimpse, even through disguises. We dig into the research on super recognizers: how scientists identify them, what's happening differently in their brains, and how police departments and border agencies have started recruiting them as real investigative tools. It's a rare case where a "superpower" isn't s
48
Aug. 18, 2026

Ep. 48: Breathe In, Breathe Out

Ever wondered how we went from "just sleep on your side" to strapping a machine to your face every night? In this episode, Crystal and Andrea dig into the surprisingly wild history of the CPAP machine — from a wine bottle and a vacuum cleaner motor in an Australian lab to the sleek, quiet devices millions of people rely on today. We trace the invention back to Dr. Colin Sullivan's 1981 breakthrough, the decades of trial, error, and skepticism that followed, and how CPAP went from a clunky lab e
47
Aug. 11, 2026

Ep. 47: I'm Half the Man I Used to Be

At 19 years old, Loren Schauers made a choice most of us will never have to face. This week, Andrea and Crystal cover the story of a young man whose ordinary workday on a bridge construction site turned into a fight to survive an accident that should have killed him instantly. We break down the injuries, the split-second decisions that saved his life, and the radical surgery that let him keep living, even after losing half his body. It's a story about the limits of the human body, and what it t
46
Aug. 4, 2026

Ep. 46: Tell Me Lies

Medicine promises the same standard of care to everyone. History tells a different story. In this episode, Andrea and Crystal dig into the disparities baked into modern medicine, who gets diagnosed, who gets believed, and who gets left behind. Two RNs unpack the data, the cases, and the consequences.
45
July 28, 2026

Ep. 45: War Pigs

He was a physician. He held the rank of general. And for over a decade, he ran one of the most horrifying human experimentation programs in modern history — and walked away from it a free man. This week, we head to Manchuria to unpack the story of Unit 731, the covert biological and chemical warfare research unit of the Imperial Japanese Army, and the doctor who built it. We're talking vivisection without anesthesia, deliberate frostbite experiments, and weaponized plague fleas — all conducted
44
July 21, 2026

Ep. 44: I Fell In to a Burning Ring of Fire

A machine that was supposed to heal became one of the deadliest medical devices of the twentieth century, and nobody could figure out why. This week, we dig into the Therac-25, a radiation therapy machine whose software errors delivered massive, lethal overdoses to patients across the US and Canada in the mid-1980s. We walk through the race condition bugs that let operators override safety checks in a matter of keystrokes, the manufacturer that dismissed early reports as impossible, and the inve