Poison ivy isn't poisonous -- it causes an allergic reaction that can take days to appear. Learn about poison ivy and how to avoid it in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/botany/poison-ivy.htm/printable See omnystudio.com/listener for privacy information ..read more

Frozen meals have become a near-daily part of many people's lives in less than a century. Learn how refrigeration, food science, and television came together to make frozen foods a thing in today's episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/menus/history-tv-dinner.htm See omnystudio.com/listener for privacy information ..read more

It's relatively common for cars and trains to pass through underwater tunnels, but these structures are marvels of modern engineering. Learn how they're blasted, bored, and built from prefab pieces in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/structural/build-underwater-tunnel.htm See omnystudio.com/listener for privacy information ..read more

This creature's amazing amalgam of traits includes fur like a mammal, webbed feet like a bird, eggs like a reptile, electroreception like a shark, and venom that may teach us how to build better painkillers. Learn more about the platypus in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/platypus-poison.htm See omnystudio.com/listener for privacy information ..read more

Almost every type of living creature relies on mucus to help keep itself healthy. Learn what snot can teach us in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/respiratory/mucus.htm See omnystudio.com/listener for privacy information ..read more

You can buy all kinds of fancy meat thermometers, but many turkeys are packaged with a simple pop-up timer that tells you when the bird is done. Learn how they work (and why Americans eat turkey on Thanksgiving in the first place) in this episode of BrainStuff, based on this article: https://home.howstuffworks.com/pop-up-timer.htm See omnystudio.com/listener for privacy information ..read more

The yak is a beautiful bovine adapted especially for its cold, high-altitude environment. Learn about yaks and their amazing milk and fiber in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/yak.htm See omnystudio.com/listener for privacy information ..read more

Depression is a common condition, and highly treatable, but there's still a lot we don't understand about how it works. Learn about depression's probable causes, usual symptoms, and effective treatments in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/depression/facts/depression.htm See omnystudio.com/listener for privacy information ..read more

The Ring of Fire is a loop around the Pacific Ocean that's a literal hotbed of volcanoes, earthquakes, hydrothermal vents, and other geologic activity. Learn how the interactions among tectonic plates cause all this mayhem in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/geology/ring-of-fire.htm See omnystudio.com/listener for privacy information ..read more

Using the bathroom in near-zero gravity is exactly as tricky as it sounds. Learn how space bathrooms have worked (and sometimes not worked) in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/10-moments-space-bathrooms.htm See omnystudio.com/listener for privacy information ..read more