What causes cavities? - Mel Rosenberg
AdultsEducationHealthHumanScienceHistory... When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes.
When are you actually an adult? - Shannon Odell
AdultsHistoryHumanLifePsychology... Explore how scientists define adulthood, and find out if there’s a specific age at which we reach maturity.
How language shapes the way we think | Lera Boroditsky
AdultsEducationHumanScienceLanguageCulture... There are about 7,000 languages spoken around the world -- and they all have different sounds, vocabularies and structures.
Why Do Heart Attacks Cause *Arm* Pain?
AdultsHealthHumanScience When the brain receives pain from an internal organ, it often projects the pain in the wrong place because of the way sensory nerve paths converge.
Who are you, really? The puzzle of personality | Brian Little
AdultsHumanPsychologySelf What makes you, you? Psychologists like to talk about our traits, or defined characteristics that make us who we are.
Saving Wild Salmon Populations
AdultsAnimalsHistoryHumanEnvironmentWildlifeFilm... In her film 'Salmon Reflection' Norwegian and Unangax̂ filmmaker Anna Hoover explores the effects of a changing world on the communities of Bristol Bay, one of the last surviving wild salmon ecosystems.
When Was The Worst Time In History To Die?
AdultsHealthHistoryHumanScience... By combining historical demography and epidemiology, we can (sort of) determine how people throughout history have died.
Explore the three main ways viruses can be driven to extinction, and dig into the possibility of COVID-19 dying out.
AdultsHealthHistoryHumanScience... Viruses are wildly successful organisms. There are about 100 million times as many virus particles on Earth as there are stars in the observable universe.
Anthropology’s Greatest Hoax
AdultsHistoryHumanScienceCulture... Scientists are sometimes deemed objective observers of the world in which we live, but that’s not entirely true. They’re still human and can find themselves victim to fraudsters just like the lot of us.
How to stay calm when you know you'll be stressed
AdultsHealthHumanPsychologyMental HealthSelf... You're not at your best when you're stressed. In fact, your brain has evolved over millennia to release cortisol in stressful situations, inhibiting rational, logical thinking but potentially helping you survive, say, being attacked by a lion.
Pet Shop Breakout Sparks Chameleon Invasion
AdultsHumanLifeNatureAnimalsEnvironment... When dozens of Jackson chameleons escaped a Hawaiian pet shop in 1972, they started to wreck havoc on the local ecosystem.
Why do you want to squeeze cute things?
AdultsHumanPsychologyScience Explore the psychology of the phenomenon known as cute aggression, which is the urge to squeeze, bite or pinch something cute.
What makes a poem … a poem? - Melissa Kovacs
AdultsHistoryHumanSelfWritingArt... What exactly makes a poem … a poem? Poets themselves have struggled with this question, often using metaphors to approximate a definition. Is a poem a little machine? A firework? An echo? A dream? Melissa Kovacs shares three recognizable characteristics of most poetry.
4 things all great listeners know
AdultsEducationHumanLifeSelf... Dig into different strategies that can improve your listening skills so you can become a high quality listener.
The Future of Public Health: Crash Course Public Health #10
AdultsHealthHistoryHumanEducationFuture... We don’t know what the next big scientific breakthrough is going to be or what futuristic diseases we’ll encounter. But when it comes to our health, we actually have a pretty good idea of what could be next.
Which Healthcare System is Best?
AdultsHealthHistoryHumanPolitics... Are you ready for the understatement of the century? Health care is complicated. Across the 200 or so countries on Earth, there are a lot of different ways people receive health care.
The Deadliest Virus on Earth
AdultsHealthHumanScienceNatureHistory... In the 1970s thousands of Chickenheads rained from the sky in Europe, making foxes and other wildlife confused and very happy. Why?
Truth Decay
AdultsHistoryHumanPsychologyPoliticsSociety... Trust is eroding, in part, due to the over-abundance of opinion-based content; we must all develop better tools and habits for consuming information to regain a shared understanding of what is true.