Imagine this: a sickness where millions fell into a deep slumber from which they never woke. Of those that did, many remained trapped in a cage of their own bodies, unable to move or speak but fully aware of the world around them. Imagine that this sickness appeared suddenly, without warning, and spread across the globe, affecting millions in just a few decades. Then, just as quickly as it emerged it disappeared. Survivors were left to suffer, eventually forgotten, while hundreds of questions remained unanswered. This is the story of encephalitis lethargica, the subject of our first ever medical mystery episode. Encephalitis lethargica was a ‘sleepy sickness’ epidemic which afflicted millions in the early 1910s and 20s but has caused only sporadic cases since the 1940s. This mysterious illness revolutionized the fields of neurology and psychiatry and forced physicians to examine where the brain ends and the mind begins. What could cause such an illness and why haven’t we seen it since? Tune in to hear us tell you the story of this fascinating medical mystery.
      
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Ep 30 Encephalitis Lethargica: Sleep Perchance to Dream (& Dream & Dream)

This podcast might not actually kill you, but Erin Welsh and Erin Allmann Updyke cover so many things that can. In each episode, they tackle a different topic, teaching listeners about the biology, history, and epidemiology of a different disease or medical mystery. They do the scientific research, so you don’t have to.
 
Since 2017, Erin and Erin have explored chronic and infectious diseases, medications, poisons, viruses, bacteria and scientific discoveries. They’ve researched public health subjects including plague, Zika, COVID-19, lupus, asbestos, endometriosis and more.

Each episode is accompanied by a creative quarantini cocktail recipe and a non-alcoholic placeborita.

Erin Welsh, Ph.D. is a co-host of the This Podcast Will Kill You. She is a disease ecologist and epidemiologist and works full-time as a science communicator through her work on the podcast. Erin Allmann Updyke, MD, Ph.D. is a co-host of This Podcast Will Kill You. She’s an epidemiologist and disease ecologist currently in the final stretch of her family medicine residency program.

This Podcast Will Kill You is part of the Exactly Right podcast network that provides a platform for bold, creative voices to bring to life provocative, entertaining and relatable stories for audiences everywhere. The Exactly Right roster of podcasts covers a variety of topics including science, true crime, comedic interviews, news, pop culture and more. Podcasts on the network include My Favorite Murder with Karen Kilgariff and Georgia Hardstark, Buried Bones, That's Messed Up: An SVU Podcast and more.

Science

Health & Fitness

In many ways, this week’s episode on myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a companion piece to last week’s episode on Long Covid. The two share many similarities: a wide range of debilitating symptoms lingering long after infection, an illness which can transform from day to day or week to week, dismissal and downplaying by the medical community, a big question mark under “pathophysiological cause”, and so many others. These parallels can tell us a great deal about our concepts of disease and how we deal with uncertainty in science and medicine. But the differences between these two can be equally revealing. In this episode, we dig into what we know and what we hypothesize about the biological underpinnings of ME/CFS before tracing the twisty history of this disease, as popular perception switched back and forth and back again from “real” to “imagined” disease. We wrap up the episode with a look at some of the current research and promising treatments for ME/CFS. Both ME/CFS and Long Covid demonstrate the power of patients and patient advocates in raising awareness about poorly understood diseases and the impact that sharing personal stories can have. You can find more incredible work by Katie Walters, the provider of one of our firsthands for this episode, by clicking on this link.
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Ep 137 ME/CFS: What’s in a name? (A lot, actually)

We’re back with our season 7 premiere, and we’re kicking things off with a topic that we’ve wanted to cover for a long time, even if the topic itself hasn’t been around all that long. That’s right, we’re taking on Long Covid. When SARS-CoV-2 began making its way around the world in 2020, it was thought to cause a mild illness in most people, with complete recovery a couple of weeks after first getting infected. But just a short time into the pandemic, people began to report debilitating symptoms lingering for months after recovery was “supposed” to happen. What started out as a trickle of reports soon turned into a tsunami, and this condition, which came to be known as Long Covid, transformed our understanding of this viral infection. In this episode, we explore how the concept of Long Covid was defined by those who experience it, who also continue to advocate for better treatment, more research, and real compassion from medical professionals. We examine what we currently know about the biology of this condition, and delve into some of the most promising research avenues that may give us a greater understanding of or ability to treat Long Covid. This story is still being written, but already it can tell us so much about our concepts of infectious disease and how the medical system treats those with “invisible” illness.
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Ep 136 Long Covid: A long time coming

For our season 6 finale, we’re spending some time with menopause. How many nicknames can you think of for menstruation? Quite a few, I’m sure. “That time of the month”, “Aunt Flo”, “the red wave”, “period”, the list goes on. But what about euphemisms for menopause? We’ve got “the change” or “change of life”, “climacteric”, and… that’s it? There may be more out there, but the comparison is revealing. Despite the fact that roughly half of the global population has or will one day experience menopause, the lack of nicknames demonstrates the silence, often tinged with shame, still enveloping it. In this episode, we explore the roots of this silence and the many historical misconceptions about menopause that frame our current perspective. We also examine the effect that this silence has on our understanding of the physiological processes underlying this transition. Why do some people experience symptoms and others do not? Why do humans experience menopause? What is the grandmother effect? What’s the latest on hormone replacement therapy? These are only a sampling of the many questions we delve into in this info-packed, frustration-laden, and eye-opening episode.
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Ep 135 Menopause is whatever you want it to be

Raise your hand if you or someone you know has had their tonsils removed. If your hand is sky-high, there’s a pretty good chance that you (or that person you know) are from the US and were born before 1980. Of course, maybe that’s not the case, but tonsillectomies certainly fit in the category of 20th-century fads, along with Tamagotchis and the Atkins diet. While the procedure is still widely performed today (and for very good reasons), the frequency of tonsillectomies has dropped drastically from mid-20th century rates. In this episode, we explore why tonsillectomies became so popular, when they fell out of favor, and what about tonsils makes them worthy of removal. Tune in to be horrified by ancient tonsil removal techniques, shocked at how long it takes new knowledge to change policies, and appreciative of just how cool tonsils actually are.
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Ep 134 Tonsils: Underestimated and underappreciated

This one’s not just for the dogs. It’s also for the cats, the raccoons, the wax moths, the birds, the mice, and so many other critters. Oh, and of course the humans. Even though most of us may be familiar with parvovirus through our canine friends, the world of parvoviruses is much larger. In this episode, we explore that world, focusing first on the biology of these tiny DNA viruses and how they make us sick before tracing the history of their discovery and the pandemic spread of canine parvovirus just a few short decades ago. We are joined by the amazing Dr. Steph Horgan Smith who acts as our veterinary tour guide through the animal world of these viruses and why vaccination against them is so incredibly important. Finally, we round out the episode with some of the latest research on these viruses, featuring some very cool, very promising work on using the dependoparvoviruses as a tool for gene therapy. Tune in to learn where Fifth disease got its name, what role raccoons may have played in the emergence of canine parvovirus, and so much more.
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Ep 30 Encephalitis Lethargica: Sleep Perchance to Dream (& Dream & Dream)

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