Brainstuff

The DSM is a manual that U.S. healthcare professionals use to identify and diagnose mental health issues -- and it’s a continual work in progress because our understanding of mental health is continually developing. Learn how the DSM works in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/mental-disorders/dsm-diagnostic-and-statistical-manual-mental-disorders.htmSee omnystudio.com/listener for privacy information.

State laws can prevent people convicted of crimes from voting, so why do federal laws let them run for president? Learn why it's actually a good thing, and when people can be barred from federal office, in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/criminal-conviction-bar-running-for-president.htmSee omnystudio.com/listener for privacy information.

The fear and hatred of people who seem 'foreign' or 'other' can sadly pop up anywhere. Learn about xenophobia and how to fight it in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/xenophobia.htmSee omnystudio.com/listener for privacy information.

Something has to be done with all those fall leaves, but the best option for the environment (and your lawn) isn't raking, it's mulching. Learn why, and how to get started, in this classic episode of BrainStuff, based on this article: https://home.howstuffworks.com/stop-raking-leaves.htmSee omnystudio.com/listener for privacy information.

The 'tryant king' of the dinosaurs has been inspiring science (and science fiction) since it was first discovered. Learn how Tyrannosaurus worked in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/dinosaurs/tyrannosaurus.htmSee omnystudio.com/listener for privacy information.

From the window of a small bridal shop in Mexico, an eerily lifelike mannequin has inspired macabre legends. Learn about La Pascualita in today's episode of BrainStuff, based on this article: https://people.howstuffworks.com/la-pascualita.htmSee omnystudio.com/listener for privacy information.

This board game brought communing with spirits to the mass market in the mid-1900s. Learn about Ouija's storied history -- plus how science says our subconscious is responsible for moving the planchette -- in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/science-vs-myth/unexplained-phenomena/ouija-boards.htmSee omnystudio.com/listener for privacy information.

Some real-life legends haunt us even if literal ghosts do not. Learn how the tales about hired gun Tom Horn caught up with him in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/history-vs-myth/tom-horn.htmSee omnystudio.com/listener for privacy information.

Pop culture loves making horrific figures adorable, from Cthulhu plushies to 'cute' Freddy Krueger costumes. But why? Learn what researchers think about the spectrum of cute to monstrous in this classic episode of BrainStuff.See omnystudio.com/listener for privacy information.

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.htmSee omnystudio.com/listener for privacy information.

Absinthe once had a sinister reputation for causing hallucinations and even insanity, but it's only as hazardous as any other alcohol. Learn about the history and science behind absinthe in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/innovation/edible-innovations/absinthe.htmSee omnystudio.com/listener for privacy information.

In frigid Antarctica, hidden ice caves warmed by volcanic activity can reach warm springtime temperatures and feature lots of liquid water. Learn what researchers hope to find in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/biology-fields/intricate-ice-caves-in-antarctica-may-harbor-unique-life.htmSee omnystudio.com/listener for privacy information.

During the Age of Exploration, Vasco da Gama established a water route from Europe to spice-rich India -- and established Portugal as a fearsome colonial force. Learn more in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/vasco-da-gama.htmSee omnystudio.com/listener for privacy information.

Intelligence and talent may be something we're born with, but there's evidence that nurture is at least as important as nature in determining genius. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/genetic/genius-genetic.htmSee omnystudio.com/listener for privacy information.

Many modern cities feature grided streets made for walking, but suburbs' wide, winding roads require cars to get around. Learn why, plus how it might change, in this classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/civil/why-so-many-suburban-streets-twist-and-turn.htmSee omnystudio.com/listener for privacy information.

There's a lot of confusion over food allergies, intolerances, and other disorders with similar symptoms. So how can you tell the difference, and how many of us should be concerned? Learn more in this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com/diseases-conditions/allergies/food-allergy/information/why-there-is-so-much-confusion-about-who-has-food-allergies.htmSee omnystudio.com/listener for privacy information.

Sparticus was an enslaved man who led a revolt against the Roman Republic that changed the course of history. Learn about the life of this gladiator turned rebel leader in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/spartacus.htmSee omnystudio.com/listener for privacy information.

The Panama Canal makes ships float uphill between oceans -- and creating it took solving an epidemic, moving millions of tons of earth, and inciting a revolution just to start out. Learn more about the Panama Canal in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/structural/panama-canal.htmSee omnystudio.com/listener for privacy information.

Some microbes make food spoil, but others help preserve it -- and even create our favorite flavors and effects, from cheese to chocolate to chardonay. Learn more about food fermentation in this episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/food-fermentation.htmSee omnystudio.com/listener for privacy information.

This question is surprisingly difficult answer, in no small part due to the stigma against discussing mental health. Learn about researchers' best estimates for the prevalence of depression around the world and in the U.S. in this episode of BrainStuff, with material from this article: https://health.howstuffworks.com/mental-health/depression/facts/depression.htmSee omnystudio.com/listener for privacy information.