Why do we have crooked teeth when our ancestors didn't? | G. Richard Scott
29 August 2023 - 6 minsAccording to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and wisdom teeth extractions today appear to be recent developments. So, what happened? While it's nearly impossible to know for sure, scientists have a hypothesis. G. Richard Scott shares the prevailing theory on crooked teeth. This TED-Ed lesson was directed by Igor Coric, Artrake Studio, narrated by Addison Anderson, music by Salil Bhayani, cAMP Studio.
Series Episodes
Interview: Why you shouldn't trust boredom | Kevin H. Gary
Are you actually bored, or is something else going on? Educator Kevin H. Gary shares three practical takeaways to deal with the doldrums, so you can take control of your attention, figure out which feelings to trust and name the real problem. After the talk, join Shoshana for a sweeping conversation with Dr. Elizabeth Harstad on the relationship between boredom and attention deficit hyperactivity disorder or ADHD. This episode originally aired on February 27, 2024. Learn more about TED Membership here! Want to help shape TED’s shows going forward? Fill out our survey! Learn more about TED Membership here! Hosted on Acast. See acast.com/privacy for more information.
27 mins
6 May Finished
Interview: 3 reasons why medications are so expensive in the US | Kiah Williams
A century after its discovery, insulin remain essential in treating diabetes, and has a relatively low production cost, with a vial generally costing less than $6 to make. But those in the US pay on average 10 times more than those in other countries— leading some patients to take less than prescribed. Kiah Williams takes a look at the US supply chain to explore why medications are so expensive. [Directed by Tolga Yıldız, Serin İnan, Kozmonot Animation Studio, narrated by Christina Greer, music by Tolga Yıldız]. After the talk, Shoshana interviews Dr. Hussain Lalani on his research into improving access to affordable prescription drugs. Want to help shape TED’s shows going forward? Fill out our survey! Learn more about TED Membership here! Hosted on Acast. See acast.com/privacy for more information.
28 mins
29 April Finished
A hospital in the cloud bringing health care anywhere in the world | Mohamed Aburawi
What if AI could help connect you with the right medical care, exactly when you need it? Health systems entrepreneur, surgeon and TED Fellow Mohamed Aburawi explores how his digital health platform, Speetar, uses AI to bridge the healthcare gap in underserved regions, like his native Libya, by connecting patients with doctors who truly understand their needs. Want to help shape TED’s shows going forward? Fill out our survey! Learn more about TED Membership here! Hosted on Acast. See acast.com/privacy for more information.
6 mins
22 April Finished
What are those colors you see when you rub your eyes? | Paul CJ Taylor
In the 1600s, Isaac Newton conducted a series of experiments to better understand the lights and colors that sometimes appear when your eyes are closed. If you’ve ever sat around an evening campfire or unintentionally glanced at the Sun, you may have noticed illuminated patterns briefly dance along your vision. So how do these visual illusions form? Paul Taylor explores the science of afterimages. [Directed by Sofia Pashaei, narrated by Alexandra Panzer, music by Cem Misirlioglu, WORKPLAYWORK]. Want to help shape TED’s shows going forward? Fill out our survey! Learn more about TED Membership here! Hosted on Acast. See acast.com/privacy for more information.
7 mins
15 April Finished
Does your heartbeat shape your sense of time? | Irena Arslanova
Do you ever feel like time slows down when you’re bored but flies when you’re having fun? Cognitive neuroscientist Irena Arslanova explores the ways your brain and heart shape your perception of time, revealing how your heartbeat doesn’t just keep you alive — it also influences whether moments feel fleeting or stretched. Want to help shape TED’s shows going forward? Fill out our survey! Learn more about TED Membership here! Hosted on Acast. See acast.com/privacy for more information.
11 mins
8 April Finished
Interview: How do kidney transplants work? | Alexander H. Toledo
In 1954, Joseph Murray attempted a type of kidney swap that no doctor had tried before. The surgery was a success, and the patient would go on to live with the transplanted organ thanks to one key factor: it came from his identical twin. 70 years later, nearly 100,000 kidneys are transplanted annually in the US alone. So how does this surgery work today? Alexander H. Toledo explains the procedure. [Directed by Biljana Labović, narrated by Addison Anderson]. Extended content: After the talk, Shoshana speaks with Leilani Graham, a writer and healthcare consultant, who survived four cardiac arrests and then a heart transplant about her personal trials and the realm of organ transplants. Want to help shape TED’s shows going forward? Fill out our survey! Learn more about TED Membership here! Hosted on Acast. See acast.com/privacy for more information.
23 mins
1 April Finished
