Something You Should Know

If your porch light seems to attract every moth and flying insect in the neighborhood, you're not imagining it. Scientists have finally figured out why artificial lights are so irresistible to many insects—and knowing what they've discovered can help you keep more bugs away this summer. https://www.nature.com/articles/s41467-024-44785-3

Some people seem to light up a room the moment they walk in. Others naturally draw people in, inspire confidence, and make lasting impressions. We call it charisma, and many assume you're either born with it or you're not. Olivia Fox Cabane says that's simply not true. In this conversation, she explains what charisma really is, why it's often misunderstood, and the surprisingly practical skills anyone can learn to become more influential and engaging. Olivia has advised leaders at Google, Deloitte, UBS, MGM, and TikTok, and is author of The Charisma Myth: How Anyone Can Master the Art and Science of Personal Magnetism (https://amzn.to/44kpuyI).

For decades, we've talked about "the midlife crisis" as though it's inevitable. But what if we've gotten midlife completely wrong? Research suggests that your middle years can be one of the most productive, satisfying, and influential periods of your life. So why does this stage have such a negative reputation? And what are people in midlife uniquely positioned to do that younger and older adults often can't? Margie Lachman, Professor of Psychology at Brandeis University and director of the Lifespan Lab, shares a fresh, evidence-based perspective on why midlife deserves a lot more celebration than sympathy. She is author of Primetime: A New Vision for Midlife (https://amzn.to/4bpLbRJ).

Have you ever searched everywhere for your keys or your glasses, only to discover they were sitting in plain sight the whole time? It's a surprisingly common experience, and it reveals something fascinating about how your brain decides what you do—and don't—see. https://dictionary.apa.org/inattentional-blindness

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Few foods are as American as the hamburger. Every year, Americans eat billions of them, and they are a staple at backyard barbecues, diners, ballparks, and restaurants around the world. Yet despite being one of the most recognizable foods on the planet, no one seems to agree on where the hamburger actually came from.

Like many great origin stories, the history of the hamburger has become tangled in myth, hometown pride, and competing claims. Over the years, dozens of people and places have been credited with inventing it, but separating fact from folklore isn't easy. That's what prompted award-winning author and historian Chris Carosa to approach the mystery the way a detective would—by following the evidence wherever it led.

Using classic investigative techniques, Chris dug through historical records, newspaper accounts, business documents, and eyewitness reports to piece together the hamburger's true story. His research reveals how the sandwich evolved, why so many people claimed to invent it, and how it eventually became one of America's most beloved foods. Along the way, he uncovers some fascinating misconceptions and surprising twists that have kept this culinary mystery alive for more than a century.

Chris Carosa is an award-winning writer, historian, and author of Hamburger Dreams: How Classic Crime Solving Techniques Helped Crack the Case of America's Greatest Culinary Mystery (https://amzn.to/2Hevorp). In this episode, he explains what the evidence really shows about the hamburger's origins, why the accepted story may be wrong, and how one simple sandwich became an enduring American icon.

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Take a look at your speedometer the next time you're driving. Chances are, it's lying to you. The speed you're actually traveling is probably different from what the dashboard says—and that's completely intentional. https://en.wikipedia.org/wiki/Speedometer?utm

From the time we're children, we're constantly reminded to "sit up straight" and "don't slouch." We've been told that good posture prevents pain, improves health, and even makes us more confident. But how much of that is actually supported by science? According to Beth Linker, surprisingly little. In this conversation, she explores where our ideas about posture came from, why so many assumptions have gone unchallenged, and what the evidence really says about the way we sit, stand, and move. Beth is a former physical therapist, medical historian, and author of Slouch: Posture Panic in Modern America (https://amzn.to/4480Hhk).

Imagine remembering names almost instantly, recalling conversations in remarkable detail, or memorizing enormous amounts of information with ease. It may sound like a rare gift, but Nelson Dellis says it's a skill almost anyone can learn. As a six-time USA Memory Champion, a two-time Guinness World Record holder and Grandmaster of Memory. He has mastered techniques that dramatically improve recall—and they're far simpler than most people imagine. In our conversation, Nelson explains how memory really works, why we forget so much, and the practical strategies you can start using immediately to remember more of what matters. He is author of Everyday Genius: Hacks to Boost Your Memory, Focus, Problem-Solving, and Much More (https://amzn.to/3Rlxpc7).

Tennis balls haven't always been bright yellow. For decades they were white, just as many people assume they always were. So why did manufacturers change one of the most recognizable pieces of sports equipment in the world? Interestingly, the answer has very little to do with tennis players—and everything to do with the people watching the match. https://www.itftennis.com/media/2280/balls-history-of-tennis-balls.pdf

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Can simply believing a treatment will work actually help it work better? Surprisingly, yes. Researchers have found that your expectations can have a powerful effect on how your body responds to medication—even when the treatment itself hasn't changed. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/placebo-effect

Most of us think of politeness as little more than saying "please" and "thank you." But good manners do much more than make social interactions pleasant. They help build trust, strengthen relationships, reduce conflict, and even influence how people judge our competence and character. So why are some people naturally more polite than others? Do the rules of politeness change depending on where you are or who you're talking to? And can you be blunt—or even rude—and still earn people's respect? Louise Mullany has spent more than 25 years studying the science of politeness. She is Professor of Sociolinguistics at the University of Nottingham and author of Polite: The Art of Communication at Home, at Work and in Public (https://amzn.to/3xVN9Jo).

You can outsource your résumé, polish your LinkedIn profile, and even use AI to help write a cover letter. But when it's time for the interview, it's all on you. Too many candidates hope they'll "just answer the questions," only to discover they weren't nearly as prepared as they thought. Sam Owens explains what hiring managers are really looking for, the mistakes that immediately hurt your chances, and how a little preparation can dramatically improve your performance—whether you're interviewing in person or over Zoom. Sam is founder of Sam's Career Talk (https://www.samscareertalk.com/) and author of I Hate Job Interviews: Stop Stressing. Start Performing. Get the Job You Want (https://amzn.to/4f7xJSX).

MSG has had a bad reputation for decades. Many people avoid it because they believe it's unhealthy or causes unpleasant reactions. But where did that belief come from? And does today's science actually support it? The answer is much more surprising than most people realize. https://health.clevelandclinic.org/is-msg-really-harmful

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Have you ever pushed on a door that was supposed to be pulled—or pulled when you should have pushed? It feels embarrassing, but don't blame yourself. It turns out the problem usually isn't you. It's the door. https://uxdesign.cc/intro-to-ux-the-norman-door-61f8120b6086

Everyone has an accent—even if they don't think they do. The way you speak tells a story about where you've been, who influenced you, and sometimes even how other people perceive you before you've said more than a few words. Why do accents develop? Why are they so difficult to lose? And do people with accents realize they have one, or do they think everyone else sounds different? Erik Singer, one of Hollywood's leading dialect coaches, explains the fascinating science, history, and psychology behind the way we speak. He has analyzed accents from around the world for millions of viewers online (https://www.eriksinger.com/) and is author of the forthcoming book The Case of the Disappearing R.

We all replay conversations in our heads. We rethink decisions, relive embarrassing moments, and imagine what we should have said or done differently. It feels productive—as if we're solving a problem. But more often than not, we're simply trapped in a mental loop called rumination. Far from helping, rumination can fuel anxiety, depression, stress, and self-doubt while making it harder to move forward. Science journalist Donna Jackson Nakazawa explains why our brains get caught in these loops, why they're so difficult to break, and what actually works to quiet an overactive mind. She is author of Mind Drama: The Science of Rumination and How to Outwit Your Inner Defeatist (https://amzn.to/4vKWiNs).

You've probably heard the advice that couples who want happier relationships should simply have sex more often. It sounds logical—but research suggests the relationship between sex and happiness may work very differently than most people assume. https://www.cmu.edu/news/stories/archives/2015/may/more-sex-does-not-lead-to-happiness.html

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