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Unhealthy Curiosity: Daily Summaries Delivered
by Dr Sarah Holper
Curious about why your stomach doesn’t eat itself, or why some people sweat blood? Dr Sarah Holper, physician and neurologist, explores the human body’s features, flaws, and questionable design choices. Unhealthy Curiosity uses science, history, and stories to explain why our bodies behave the way they do.
Latest Episodes
The most recent episodes — sign up to get AI-powered summaries of each one.
- 5 days ago13 min
The 1980 Red Sweat Epidemic
In 1980, flight attendants began apparently sweating blood on flights between New York and Florida. The CDC investigated. The explanation was not what anyone expected. Also featuring blue sweat, pink sweat, and the only diagnostic dilemma ever solved by a dermatologist ringing a snack-food manufacturer.
- 1 weeks ago13 min
The Itchy & Scratchy Show
This episode explores the biology of itching. Including NASA’s emergency Velcro patches, exploding lice in World War I trenches, contagious scratching, "amphetamites", mosquito mouth-javelins, and the imaginary insects produced by the human brain itself.
- 2 weeks ago12 min
What Does Your Urine Say About You?
This episode explores what urine can reveal about you — from pregnancy and diabetes to drugs, disease, and genetic disorders. Including ancient Egyptian pregnancy tests, beetroot-induced panic, blue urine pranks, and why IKEA once asked women to wee on their catalogue.
- 3 weeks ago15 min
The Strange Science of Sneezing
This episode examines the odd biology and even odder rituals surrounding sneezing. Including sunlight sneezes, chocolate sneezes, and why on earth we feel compelled to bless them.
- May 3, 202613 min
Doctor, or Piss Prophet?
For thousands of years, doctors believed urine revealed the hidden workings of the body. By peering at a patient’s wee, they diagnosed everything from epilepsy to death — sometimes without even meeting the patient.This episode explores the strange history of uroscopy, the rise of the “piss prophets”, and why modern doctors still occasionally ask you for a wee sample today.
- Apr 26, 202612 min
When Doctors Got it Wrong: Prescribing the Sun
If you were feeling sickly 100 years ago, your doctor might have prescribed a loincloth, a bed, and a sun-drenched balcony in the Swiss Alps. No blood tests or scans — your degree of tan would determine your prognosis. From sun worship to sun-gazing to Coco Chanel accidentally making bronzed skin chic, this episode explores the many ways medicine and mankind have misunderstood the sun.
- Apr 19, 202612 min
DNA, Twins, and the Serial Killer Who Never Existed
Your DNA can build a body, grow a tumour, or implicate you in a crime. This episode explores what happens when DNA evidence meets identical twins, and why one of Europe’s most feared serial killers turned out to be much stranger than anyone expected.
- Apr 12, 202612 min
Could You Get a Voice Transplant?
If you’ve ever heard a recording of your own voice, you may have wished for a voice transplant. But would it be possible? This episode explores why your voice is more than your voice box — and what it would actually take to sound like Elvis.
About Unhealthy Curiosity
Curious about why your stomach doesn’t eat itself, or why some people sweat blood? Dr Sarah Holper, physician and neurologist, explores the human body’s features, flaws, and questionable design choices. Unhealthy Curiosity uses science, history, and stories to explain why our bodies behave the way they do.
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