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Curiosity Weekly

Stay Happy and Healthy by Maintaining Your Routines, How Dolphins Learn to Use Tools, and Can Adults Grow New Brain Cells?

Curiosity Weekly

Warner Bros. Discovery

Science

4.6964 Ratings

🗓️ 20 July 2020

⏱️ 11 minutes

🧾️ Download transcript

Summary

Learn about whether adult neurogenesis can help humans grow new brain cells; the super cool way dolphins learn how to use tools; and how keeping good “zeitgeber hygiene” by sticking to a regular routine can keep you happy and healthy.

Can you grow new brain cells as an adult? by Grant Currin

Dolphins use tools — and they learn how from other dolphins by Cameron Duke

To stay happy and healthy, maintain your routines -- aka "zeitgeber hygiene" by Kelsey Donk

Subscribe to Curiosity Daily to learn something new every day with Cody Gough and Ashley Hamer. You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap “enable” here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY

 

Find episode transcript here: https://curiosity-daily-4e53644e.simplecast.com/episodes/stay-happy-and-healthy-by-maintaining-your-routines-how-dolphins-learn-to-use-tools-and-can-adults-grow-new-brain-cells


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Transcript

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0:00.0

Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Curiosity.com.

0:06.0

I'm Cody Goff.

0:07.0

And I'm Ashley Hamer.

0:08.0

Today you learn about whether you can grow new brain cells as an adult.

0:12.0

The super cool way dolphins learn how to use tools and how

0:15.9

sticking to a routine can keep you happy and healthy.

0:19.2

Let's satisfy some curiosity.

0:21.7

The brain is made of cells called neurons, about 86 billion of them.

0:26.8

And when you're little, your brain spends its time sprouting those neurons, forming connections

0:31.8

between them, and getting rid of the connections that don't get a whole

0:35.1

lot of use. But is it possible to grow new neurons later after the brain has developed?

0:45.5

After nearly a hundred years of study scientists still aren't completely sure but here's what we do know the growth of new

0:51.0

neurons is called neurogenesis.

0:53.6

And it's been a topic of debate since the first modern neuroscientist offered an opinion back in

0:59.1

1928.

1:00.5

Santiago Ramon Iqahal was already a Nobel Laureate when he said no, absolutely not.

1:07.0

I mean seriously, he once wrote, quote,

1:10.0

Everything must die, nothing may be regenerated."

1:13.7

Prudal.

1:15.7

And that was the story, for decades.

1:19.2

But starting in the 1960s, a few experiments started turning up evidence that adult neurogenesis might be possible, at least in rats, guinea pigs, and cats.

1:30.0

Still, most neuroscientists weren't on board.

...

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