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Short Wave

Drinking Turns Some Red With Asian Glow—And May Fight Tuberculosis

Short Wave

NPR

Science, Life Sciences, Daily News, Astronomy, News, Nature

4.76K Ratings

🗓️ 24 December 2025

⏱️ 14 minutes

🧾️ Download transcript

Summary

Ever gotten a scarlet, hot face after drinking alcohol or know someone who has? Many people felt it as they celebrate the holidays with loved ones, sipping mulled wine, cocktails or champagne. That's because this condition, commonly called "Asian flush" or "Asian glow," affects an estimated half a billion people, who can't break down aldehyde toxins that build up in their bodies. But what if there's a benefit to having Asian glow? Katie Wu, a staff writer for The Atlantic, has looked into the research as to why the condition might have been a powerful tool for some of our ancestors to survive disease. (encore episode)

Questions about other potential tradeoffs for our genetics? Email us at [email protected]. We've love to hear from you and we might cover it in a future episode!Read Katie's article to learn more.Questions about other potential tradeoffs for our genetics? Email us at [email protected]. We've love to hear from you and we might cover it in a future episode!Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.This episode was produced by Rebecca Ramirez, edited by Berly McCoy and fact-checked by Brit Hanson. Gilly Moon was the audio engineer.

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Transcript

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0:00.0

You're listening to Shortwave from NPR.

0:09.4

If you've tried alcohol, you might remember the first time as some rebellious choice,

0:14.0

or as part of some holiday ritual like champagne at New Year's, or it could have been by accident.

0:20.5

I had mine in the middle of winter,

0:22.5

somewhere around this time of year. I was only about eight or nine, and a snowstorm had hit

0:27.4

the tiny town I lived in along Washington State's border with Canada. The power had been

0:34.5

knocked out, and the house was freezing. So my mom gathered me and my brother and my sister

0:39.2

and gave us a tiny sip of cognac to keep us warm.

0:46.7

Telling it now, it kind of feels like something out of a novel.

0:49.9

But if you're Katie Wu, that first sip can also be pretty mundane.

0:54.7

I vaguely remember taking that little errant sip of wine at some dinner party my parents had when I was a kid.

1:02.0

I don't think that did anything to me except make me go, I'm spitting this out.

1:06.8

Years later, Katie finally tried another drink.

1:09.4

Because I was a very, very, very well-behaved high schooler.

1:14.1

And I sort of already knew what was coming because I had watched my parents get extremely red and goofy and sweaty and warm every time they went out and had sake or red wine.

1:27.9

I knew what was likely in my future.

1:30.4

Like clockwork, when Katie started to sip that drink in college, her face bloomed red.

1:36.2

I would compare myself to a human stop sign or if Rudolph's nose was the entirety of my face.

1:43.7

Like truly the warmth blooms from my cheeks and then spreads all over and even starts to creep down my neck.

1:50.6

You can see it from across the room.

1:52.7

Yeah.

1:53.1

For me, it gets splotchy, you know?

...

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