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Unhealthy Curiosity: Daily Summaries Delivered
by Dr Sarah Holper
Neurologist, author and science communicator Dr Sarah Holper explores the fascinating science behind the human body's strangest features, flaws and quirks. Using medicine, history and curious case studies, she explains why we work the way we do, one wonderfully weird question at a time. From sweating blood to voice transplants, each episode explores a curious corner of medicine and biology.Learn more at drsarahholper.com.
Latest Episodes
The most recent episodes — sign up to get AI-powered summaries of each one.
- 3 days ago15 min
When Food Allergies Get Intimate
This episode explores what happens when allergies get saucy – and I don’t mean in the satay sense. From fishy French kissing to nut-based bedroom mishaps, discover why you don’t have to eat something to have an allergic reaction to it.
- 2 weeks ago17 min
The 3 Things Weirdly Absent from Your Dreams
You can fly, turn invisible or ride a giraffe through an airport in your dreams. But there are three perfectly ordinary activities that almost never make an appearance. This episode explores a bizarre peculiarity of dreaming, what it might tell us about the evolution of the human brain, and why even Freud probably didn't want to hear about your dreams.
- Oct 2, 202619 min
Why Pain Is Good For You
Pain is miserable, but living without it is considerably worse. This episode explores the extraordinary lives of people born unable to feel pain, from a 1930s vaudeville performer (the "Human Pincushion") to a man who had both legs amputated without painkillers, to discover why pain hurts quite so much – and why your survival depends on it.
- Sep 20, 202614 min
Are You Actually Asleep Right Now?
How do you know whether you’re actually asleep? People with paradoxical insomnia can spend the night convinced they’re wide awake, while their brainwaves insist otherwise. This episode explores what happens when your experience of sleep disagrees with the electrical evidence, why the sleeping brain may be more awake than we once thought, and whether you might actually be getting more sleep than you realise.
- Sep 8, 202616 min
How to Turn Your Skin Any Colour of the Rainbow
This episode explores how drugs, foods, poisons, cosmetics and assorted bodily malfunctions can produce human skin in all 7 colours of the rainbow (and how Isaac Newton is to blame for us thinking a rainbow has 7 colours in the first place).
- Aug 27, 202614 min
Why Muscles Cramp (And What to Do About It)
Dehydration. Too much water. Too much exercise. Not enough exercise. Apparently almost anything can cause a muscle cramp. This episode explores why your muscles occasionally seize without permission, what your nervous system has to do with it, and whether magnesium actually helps.
- Aug 12, 202619 min
How Does Your Tongue Know What Things Taste Like?
How can the hunk of meat in your mouth ‘know’ what the food smeared over it tastes like? This episode explores what actually makes something sweet, sour, salty, bitter or umami, and what maggot-infested cheese, antifreeze and a poisoned Roman emperor have to do with it.
- Aug 3, 202615 min
Can a Nosebleed Kill You?
Spoiler alert: yes. A nosebleed may have finished off one of history's most feared warlords. This episode explores why noses bleed so dramatically, the ingenious anatomy hidden inside your nostrils, exactly what to do the next time your nose starts gushing... and one of the strangest nosebleed case reports ever published.
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About Unhealthy Curiosity
Neurologist, author and science communicator Dr Sarah Holper explores the fascinating science behind the human body's strangest features, flaws and quirks. Using medicine, history and curious case studies, she explains why we work the way we do, one wonderfully weird question at a time. From sweating blood to voice transplants, each episode explores a curious corner of medicine and biology.Learn more at drsarahholper.com.
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Frequently Asked Questions
What is Podzilla's Unhealthy Curiosity daily summary?
It's a free AI-powered email that summarizes new episodes of Unhealthy Curiosity as soon as they're published. You get the key takeaways, notable quotes, and links & mentions — all in a quick read.
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When a new episode drops, our AI transcribes and analyzes it, then generates a personalized summary tailored to your interests and profession. It's delivered to your inbox every morning.
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No. Podzilla is an independent service that summarizes publicly available podcast content. We're not affiliated with or endorsed by Dr Sarah Holper.
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What topics does Unhealthy Curiosity cover?
Unhealthy Curiosity covers topics including Science, Life Sciences. Our AI identifies the specific themes in each episode and highlights what matters most to you.
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