

BrainStuff
iHeartPodcasts
Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.
Episodes
Mentioned books

Jan 22, 2026 • 10min
How Did One Portuguese Diplomat Save Thousands of Holocaust Refugees?
During WWII, a diplomat by the name of Aristides de Sousa Mendes disobeyed his government in order to provide safe passage to thousands of people fleeing fascist violence in Europe. Learn how his descendents are working together with descendents of those he saved to tell his story in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/aristides-de-sousa-mendes.htmSee omnystudio.com/listener for privacy information.

Jan 1, 2026 • 11min
How Do Search-And-Rescue Dogs Work?
When every minute counts, search-and-rescue dogs can help locate disaster victims far faster than humans alone. Learn about how they're trained in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/animal-facts/sar-dog.htm/printableSee omnystudio.com/listener for privacy information.

Dec 31, 2025 • 5min
BrainStuff Classics: Why Do We Drop a Ball on New Year's Eve?
The tradition of dropping a ball in Times Square to mark the beginning of a new year only goes back about a century. Learn about the history -- plus four weird things that other cities drop instead -- in this classic episode of BrainStuff.See omnystudio.com/listener for privacy information.

Dec 30, 2025 • 8min
Can You Really Die of Boredom?
Boredom might not kill you, but it can push you towards risky behaviors. Discover the intriguing biological and psychological aspects of ennui. Chronic boredom is linked to thrill-seeking and can increase mortality risks. Explore how developing healthy coping strategies, like social engagement and mindfulness, can alleviate feelings of boredom. Plus, learn how embracing boredom can spark creativity and help you find your flow through meaningful activities and challenges.

Dec 26, 2025 • 7min
BrainStuff Classics: Why Does Cashmere Cost So Much?
Cashmere can be more expensive than other wools because producing it is such an intensive process -- for the goats that grow it and the humans who care for them. Learn more in this classic episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/why-is-cashmere-so-expensive.htmSee omnystudio.com/listener for privacy information.

Dec 25, 2025 • 6min
Why Is There a Pooping Figurine in Some Nativity Scenes?
In Catalonia, there's a two-hundred-year-old tradition of including a figurine of a man pooping in the shadows of Nativity scenes. Learn about el caganer in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/culture-traditions/holidays-christmas/pooping-man-catalan-nativity-scene.htmSee omnystudio.com/listener for privacy information.

Dec 24, 2025 • 10min
How Do Rice Cookers Work?
These small appliances help home cooks achieve excellent rice via two categories of technology: ingeniously simple physics, or incredibly complex algorithms. Learn about heat-sensitive switches and fuzzy logic in this episode of BrainStuff, based on this article: https://home.howstuffworks.com/rice-cooker.htm/printable For more about the history of rice cookers, check out this episode of Lauren's other podcast, Savor: The Warm and Fuzzy Rice Cooker EpisodeSee omnystudio.com/listener for privacy information.

Dec 23, 2025 • 10min
How Can Mudlarking Turn Trash Into Treasure?
Mudlarking means sifting through riverbank muck in hopes of finding lost or discarded historical artefacts. Learn how it works, especially in the River Thames, in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/archaeology/mudlarking.htmSee omnystudio.com/listener for privacy information.

Dec 22, 2025 • 11min
How Do Walruses Work?
These arctic animals have complex social structures and may eat 6,000 clams in a single meal. Learn more walruses in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/walrus.htm/printableSee omnystudio.com/listener for privacy information.

Dec 9, 2025 • 12min
What Happens When Your Immune System Turns on You?
Your adaptive immune system remembers specific germs and fights them really effectively -- but it can sometimes make mistakes and attack your own healthy cells. Learn how the adaptive immune system works (and how it can go wrong) in this episode of BrainStuff.See omnystudio.com/listener for privacy information.


