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Unexplainable

The metabolism myth

Unexplainable

Vox

Science, Natural Sciences, Life Sciences

4.62.4K Ratings

🗓️ 17 September 2025

⏱️ 32 minutes

🧾️ Download transcript

Summary

Recent research — and one surprising season of The Biggest Loser — has scientists wondering whether some of the most basic things they know about metabolism are wrong. Guest: Julia Belluz, author of Food Intelligence For show transcripts, go to ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠vox.com/unxtranscripts⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠For more, go to ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠vox.com/unexplainable⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠And please email us! ⁠⁠⁠unexplainable@vox.com⁠⁠⁠We read every email.Support Unexplainable (and get ad-free episodes) by becoming a Vox Member today: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠vox.com/members⁠⁠⁠⁠⁠⁠⁠⁠Thank you! Learn more about your ad choices. Visit podcastchoices.com/adchoices

Transcript

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0:00.0

This week on the gray area, we're learning about how memory affects the stories we tell ourselves and each other.

0:07.4

People tend to remember positive events more from their lives and negative events, but more importantly, when they reconstruct them, they tend to remember themselves more positively.

0:18.2

And then you construct a narrative out of it. Maybe that narrative is that our people

0:22.9

are great. Maybe that narrative is we used to be great and now we're terrible. We need to be great

0:28.5

again. Listen to the gray area wherever you get your podcasts. New episodes every Monday.

0:35.4

Megan Rapino here. This week on a touch more. We're getting into the WMBA's nail-biting semifinals,

0:42.2

the heartbreaking end to the Link's playoff dreams, and controversial refereeing.

0:48.4

Plus, Emma Hayes joins us to discuss how she's reshaping the U.S.

0:51.7

Women's National Team through the female lens.

0:55.0

Check out our latest episode of A Touch More, wherever you get your podcast, and on YouTube.

1:06.2

So when I was a kid, I was this chubby kid, and I feel like I was met with the message that,

1:12.6

you know, you're too big and you need to be doing something about it. It's something that

1:16.8

you should just be able to say no and to cut back. When Julia Balluz was a kid, she heard

1:22.5

this kind of message all over the place. It was a message I got in the pediatrician's office. It was a message I got at home.

1:28.6

It was a message I got at school.

1:30.8

And I kind of internalized that, and I thought, maybe I just, you know, I don't have a strong enough will.

1:37.8

Or maybe there's something wrong in my biology.

1:40.9

Maybe I have a slow metabolism.

1:43.1

She tried everything she could think of to speed up

1:45.5

her metabolism. She went on all kinds of diets. She even tried some pills she got from a trainer at her

1:51.4

local gym. I was a teenager. I must have been like 15 or 16 years old. And I took these supplements

1:57.3

and I have no idea. God only knows what was in them. But I had this hope that

...

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