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Sadie Dingfelder
Science journalist and author of "Do I Know You?" (Little, Brown, 2024), a memoir-science blend sparked by her late-in-life faceblindness diagnosis; former Washington Post Express reporter.
14
APPEARANCES
4
PODCASTS
012
DEC 30
JAN 6
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JAN 27
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Jul 1, 2026
You might not recognize us with Sadie Dingfelder and Do I Know You?
25:54

Davey BerrisHOST
It's, or do they, or do they really feel so slighted that you didn't recognize them that they don't say anything to you?
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25:59Sadie DingfelderGUEST
I mean, I cannot, I am sure that many, many times, like not a day, but like at least once a day when I was in the city, um, I would a- I would like snub someone by accident, and they would probably take it as intentional.
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26:16Sadie DingfelderGUEST
You know, and I didn't realize that until, I mean, after I wrote the, my face blindness article, I was, went out to lunch with my editor at the Post.
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26:27Sadie DingfelderGUEST
And, and h- he was like, and then like, so we were just walking out of the Post building and he's like, "That, that like short-ish man was trying to get your attention." And I looked and it was my boss, and I was like, "Oh my God," like, "Why didn't you tell me earlier?" Like I just completely ignored my boss.
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26:43Sadie DingfelderGUEST
But at least I just had a new article coming out explaining why, I guess.
18 MINS LATER
Sadie Dingfelder: "You Cannot Be Burned by Wind Alone"
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7:15Sadie DingfelderGUEST
... maybe an albino mouse with fur is equivalent to a human without, who's not albino.
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7:21Sadie DingfelderGUEST
But I can tell you that the, um, they put them in this wind tunnel, and the wind blew at about six miles per hour, and they exposed them to UV light, and they found that the wind alone produced no detectable skin damage, but the UV...
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7:37Sadie DingfelderGUEST
And the UV lights caused burn, like you would expect, and the UV plus the wind produced worse burns and slower recovery than the UV alone.
7 MINS LATER
Sadie Dingfelder: "Raccoons Have Never Been a Rabies Vector in America"
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12:43Sadie DingfelderGUEST
But what seems to have happened is that in the '70s, some Virginia, um, hunters got permits to transport Florida raccoons to Virginia, um, in order to hunt them, to replenish the, the, uh, decimated raccoon population up here.
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13:05Sadie DingfelderGUEST
And some of them turned out to be rabid, and I'm sure that, like, Florida and Georgia and who knows where else, like, had plenty of rabid raccoons, but no one was testing them.
6 MINS LATER
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19:15Sadie DingfelderGUEST
And so the Air Force, like very presciently, um, st- held onto his tissue, his like brain tissue.
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19:22Sadie DingfelderGUEST
Um, and so that was helpful because in 2013, a person who had received a kidney donation from Small died of raccoon variant rabies, and they traced it back to Small, and then they tested his, uh, brain tissue, and he also had the same rabies.
Faceblindness & A Journey To Rediscover Your Brain Midlife
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3:09Anita RaoHOST
One of the first big aha moments was during a run-of-the-mill errand with her husband.
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3:14Sadie DingfelderGUEST
I was in a grocery store, and I lost track of my husband, Steve, for a minute, and when I found him, he was in, like, the snack aisle filling our cart with lots of stuff he doesn't usually buy.
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3:28Sadie DingfelderGUEST
And for whatever reason, I plucked out a jar of generic peanut butter, and I said, "Since when do you buy generic?" And Steve looked back at me, and he was horrified.
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3:39Sadie DingfelderGUEST
Like horrified, terrified, and whatever would scare this giant man, like, had me a little concerned too.
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3:44Sadie DingfelderGUEST
So I, like, literally looked over my shoulder, and then I was like, nothing was there, and I realized Steve was scared of me because it was not Steve.
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3:53Sadie DingfelderGUEST
It was just some dude who was Steve shaped and wearing a really similar jacket.
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3:58Sadie DingfelderGUEST
So after that, I find Steve at the checking out, and I said, "You won't believe what happened." And Steve was like, "Actually, I totally believe it because this stuff happens to you all the time." And then that was my second clue that maybe this was something to pay attention to.
31 MINS LATER
Episode 72 - Do I Know You? - A Conversation with author Sadie Dingfelder
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36:01Sadie DingfelderGUEST
And so I'm pretty open-minded when I walk into new situations because I have no preconceived notion about what it...
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36:07Sadie DingfelderGUEST
Because I don't even have the mental machinery to project myself into the future.
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36:13Sadie DingfelderGUEST
So again, like, this, these are things that are very odd-sounding to people, but it's kind of nice.
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36:18Sadie DingfelderGUEST
Like, I think it would be really stressful to constantly be thinking about the past and the future.
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36:25Sadie DingfelderGUEST
Though a lot of times though, even when I am quite present, like, I'm not...
Is That Bulls*it: Does The Body Keep the Score - in Your Hips
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16:53Sadie DingfelderGUEST
His name's Nicolay Kukushkin, and he wrote a book called One Hand Clapping that's awesome.
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17:04Sadie DingfelderGUEST
I mean, the generic definition of memory is it's anything that is a lasting change that is caused by experience that affects what you can do later.
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17:13Sadie DingfelderGUEST
So if you're a muscle cell, if you're a muscle fiber and you get worked out, you might produce some extra mitochondria so you do not next time fatigue as quickly.
Holiday Suicides: Is That BS? with Sadie Dingfelder
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14:40Sadie DingfelderGUEST
(laughs) But yeah, so, um, the same, uh, PIN uni- uh, PIN survey said, um, that something like...
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14:51Sadie DingfelderGUEST
In 2023, which was the most recent, uh, 58% of articles on the topic said that suicides peak during the holidays, and in 2000, it was 77%.
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19:20Sadie DingfelderGUEST
And, uh, and so sometimes they call people on holidays just by random chance and...
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19:26Sadie DingfelderGUEST
And Christmas and Thanksgiving are consistently in the top five happiest days of the year.
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19:31Sadie DingfelderGUEST
And other holidays like Memorial Day, New Year's, and Independence Day are also regularly in the top, uh, happiest days.
Sadie Dingfelder on "Hair, Feathers, and the Theater of Disgust."
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16:11Sadie DingfelderGUEST
Hair follicles are actually embedded in your scalp and the, they also compared it to skin, and they found that there are many, like, hair, hair is actually quite, um, not a very, uh, it's not a very...
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16:27Sadie DingfelderGUEST
It's like an arid desert, like it's hard for bacteria to thrive on hair shafts, but in your hair follicle, which is embedded in your skin and has all these nice oils, uh, and plenty to eat and moisture, there's just tons and tons and tons in your hair follicle.
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16:42Sadie DingfelderGUEST
But in terms of hair that gets in your food, that's gonna be hair shaft unless you have someone who is, like, plucking their eyebrows while making your soup.
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19:32Sadie DingfelderGUEST
He, he was the father of spin, as you mentioned, but he really, um, sort of pioneered shifting public opinion without, like, direct advertising.
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19:43Sadie DingfelderGUEST
So Vinita Hairnet came to him in the 1920s and they were like, "Oh my god.
Sadie Dingfelder on Mosquito Magnets and Who Tastes Best to Bugs
8:02

Mike PescaHOST
All right, so how did they study this? If they do indeed study this, and I'm going to guess they studied it because you studied them studying it.
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8:10Sadie DingfelderGUEST
There are tens of thousands of articles on mosquitoes and at least 1,000 on specific attractants of mosquitoes, and the early ones really used human beings.
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8:24Sadie DingfelderGUEST
So my, one of my favorite ones that I came across was the study in 1993 in Gambia where they had...
7 MINS LATER
The Great Lantern Fly Freakout: Is That BS?
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18:13Sadie DingfelderGUEST
Uh, but we prob- but most people agree that it's probably a lower estimate, um, 43 billion.
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18:20Sadie DingfelderGUEST
Um, and then if we divide that by the population of the 18 states where it is today, um...... that is, that comes out to 290 lanternflies per person, um, we have to squish this summer to get rid of all of them.
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18:48Sadie DingfelderGUEST
And they, they lay their eggs, um, about, uh, oh, most of their eggs, like 95% of them, are more than 20 feet up.
Putting Death Metal On Your Plants Playlist: Is That Bs?
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15:37Sadie DingfelderGUEST
And one of the, like, papers that sort of broke this field wide open, was in 2019, these scientists at Tel Aviv University did an incredible study where they found that, that evening primrose flowers respond to the sound of buzzing bees by ramping up their sugar production, making their nectar 20% sweeter.
7 MINS LATER
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23:05Sadie DingfelderGUEST
So the strawberries, there's an interesting and complicated story wh- (laughs) where s- the...
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23:10Sadie DingfelderGUEST
So they blasted the strawberries for two hours a day or five hours a day of pretty loud, um, broadband sound, and they, um...
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23:21Sadie DingfelderGUEST
So 70 to 100 decibels, (laughs).1 to 1 kilohertz, and they did it for 22 (laughs) to 72 days.
Bark Buttons: “Who Let the Dogs Talk?”
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19:01Sadie DingfelderGUEST
And, um, what was the other thing they tried to rule out? Yeah, non-random, they're not copying their owners, and they're responding appropriately.
9 MINS LATER
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27:54Sadie DingfelderGUEST
I imagine since we're sight, if you, like, do one as an analog, the dogs, um, they...
What is Gen-Z Doing with Mewing?
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18:03Sadie DingfelderGUEST
And if it was just his kids he was doing it to, that'd be bad enough, but he was doing it to other kids too.
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18:08Sadie DingfelderGUEST
And in the John Mew tri- trials or hearings, they brought in, they showed pictures, like, "He-...
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18:17Sadie DingfelderGUEST
And one kid was having seizure-like episodes when they tried to put the headgear on them.
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18:21Sadie DingfelderGUEST
These poor five-year-olds were forced to wear headgear literally 24 hours a day, and-
5 MINS LATER
Should You Shout "Help" or "Fire"?
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7:01Sadie DingfelderGUEST
And so I went and looked to try to find elsewhere where else it was found.
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7:05Sadie DingfelderGUEST
I mean, I found it in lots of psychology textbooks, older, usually like pretty old, though.
5 MINS LATER
