Something You Should Know
Sometimes all it takes is one little fact or one little piece of wisdom to change your life forever. That's the purpose and the hope of "Something You Should Know." In each episode, host Mike Carruthers interviews top experts in their field to bring you fascinating information and advice to help you save time and money, advance in your career, become wealthy, improve your relationships and help you simply get more out of life. In addition, Mike uncovers and shares short, engaging pieces of "intel" you can use to make your life better - today. Right now.
Episodes
January 22, 2026 • 49 mins
When you get sick, your instinct is to withdraw — crawl into bed, cancel plans, and avoid people. As unpleasant as that feels, it turns out that instinct may be doing something surprisingly important for everyone else. This episode begins with why feeling miserable when you’re sick is actually a good thing. https://www.sciencedaily.com/releases/2016/01/160107094128.htm
If you really want to know what’s most likely to seriously inj...
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January 19, 2026 • 48 mins
What if one of the best-performing investments over the last few decades wasn’t stocks, real estate, or gold — but LEGO? It sounds absurd, yet when researchers tracked the resale value of LEGO sets, they found returns that beat many traditional investments. We begin by looking at which sets gain value, why they do, and what makes some toys unexpectedly valuable. https://www.sciencedirect.com/science/article/abs/pii/S02755319210016...
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January 17, 2026 • 50 mins
How food tastes has surprisingly little to do with the food itself. The lighting in the room, the weight of your fork, and even the color of your plate can all change how much you enjoy a meal — without you realizing it. This episode begins with how easily your senses can be influenced. https://www.npr.org/sections/thesalt/2014/12/31/370397449/food-psychology-how-to-trick-your-palate-into-a-tastier-meal#
When you recognize someone...
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January 15, 2026 • 49 mins
There’s a reason hearing your mother’s voice can feel different from hearing anyone else’s — even when it’s just a phone call. This episode opens with the surprising effects researchers have discovered. https://www.psychologytoday.com/us/blog/the-psychology-of-relationships/202104/two-key-reasons-why-you-should-call-your-mom
Guilt feels terrible — and that’s exactly what makes it so effective. While we tend to see guilt as somethi...
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January 12, 2026 • 50 mins
When children grow up and look back on their childhood, what do they remember most about their parents? It turns out it’s not what many parents assume. This episode begins with research revealing which parenting behaviors leave the strongest, longest-lasting impressions — and how they shape adult relationships. https://time.com/4097995/parenting-kids-remember/
Some emotions can completely hijack your day. Anger, anxiety, frustrati...
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January 10, 2026 • 49 mins
Creating strong passwords is a modern headache. Simple ones are easy to hack. Complex ones are hard to remember. And using the same password everywhere is just asking for trouble. This episode begins with a smarter, practical strategy for creating passwords that are both secure and memorable. Source: Sid Kirchheimer, author of Scam-Proof Your Life (https://amzn.to/3SeWhA5)
Men and women differ in ways that go far beyond the obviou...
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January 8, 2026 • 48 mins
Driving with a cold might seem harmless — but research suggests even mild illness can seriously impair reaction time, focus, and judgment. Could driving while sick actually be more dangerous than driving drunk? This episode begins with some surprising evidence about what happens when you get behind the wheel with a cold or flu. https://www.dailymail.co.uk/health/article-2283323/Dont-sniffle-drive-Driving-cold-dangerous-drunk-drivin...
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January 5, 2026 • 46 mins
You’ve probably been told to be grateful for what you have — but that advice isn’t just feel-good wisdom. Research shows that intentionally expressing gratitude can actually change how your brain functions, influencing mood, focus, and emotional resilience. This episode begins with what gratitude really does inside your head — and why it’s more powerful than it sounds. https://www.thecut.com/2016/01/how-expressing-gratitude-change-...
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January 5, 2026 • 48 mins
Can simply imagining yourself doing something actually make you better at it? Athletes, musicians, and performers have sworn by mental rehearsal for years — but does it really work? This episode begins by exploring when visualization helps, when it doesn’t, and why. https://www.popsci.com/will-practicing-skill-your-head-make-you-better-it/
Weight loss is one of the most common New Year’s resolutions — and today, any serious conver...
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January 3, 2026 • 50 mins
Have you ever noticed that one foot is often slightly bigger than the other? It sounds odd, but it’s extremely common — and there’s a clear biological reason for it. This episode begins with why it happens, which foot is usually larger, and what it means for comfort and health. https://www.feetbypody.com/blog/is-it-normal-for-one-foot-to-be-bigger-than-the-other/
The Moon has been hanging over our heads for billions of years — but...
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January 1, 2026 • 48 mins
Your mind wanders — that’s normal. But letting it drift too much may come at a cost. Research shows that frequent mind-wandering can make you less happy, less focused, and more stressed than you realize. This episode begins with why an unfocused mind can quietly work against you. http://www.sciencedaily.com/releases/2010/11/101111141759.htm
You talk to yourself constantly — and much of that inner dialogue is critical, harsh, and u...
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December 29, 2025 • 45 mins
When you watch a great dancer, what separates them from everyone else isn’t strength, flexibility, or even rhythm — it’s one specific part of the body most people never think about. This episode begins with what it is and why it matters so much. https://www.nature.com/articles/srep42435
Why do some people seem instantly likable while others struggle to connect? There’s real science behind first impressions, and small behaviors can...
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December 27, 2025 • 47 mins
There is a three-letter word in the English language that holds more meanings than any other word. You’ve probably said it several times today without realizing how complex it really is. This episode begins with the surprising story behind that word. https://www.rd.com/article/most-complicated-word-in-english/
How much of who you are comes from your genes — and how much comes from the home you grew up in? Heredity is powerful, but...
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December 25, 2025 • 47 mins
Why do we say Merry Christmas instead of Happy Christmas? The phrase has a surprisingly rich past, shaped by culture, language, and holiday tradition. This episode begins with where “merry” came from and why it stuck. https://time.com/6240140/why-we-say-merry-christmas-traditions/
Being alone isn’t the same as being lonely. In fact, choosing solitude can offer profound psychological and emotional benefits. Robert J. Coplan joins m...
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December 23, 2025 • 30 mins
Every December, millions of people around the world track Santa’s journey in real time using the NORAD Santa Tracker. But why is a military defense organization keeping tabs on Santa Claus in the first place? This bonus holiday episode begins with the surprisingly charming and accidental origin of that tradition. https://www.noradsanta.org/en/about/
Why do people kiss under the mistletoe? Why do we decorate Christmas trees with or...
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December 22, 2025 • 47 mins
If you fall short on sleep, can you really “catch up” the next night? Many people think so — but our bodies don’t quite work that way. This episode begins with what science says about recovering from poor sleep and how to optimize deep sleep when your schedule gets disrupted. https://www.womenshealthmag.com/health/a40511210/deep-sleep/
What makes a song a hit? Trends, personal taste, timing, and luck all play a role — but today, t...
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December 20, 2025 • 49 mins
Sometimes the perfect words show up when you need them most. We start with a surprisingly powerful bit of holiday inspiration from Mr. Rogers — a reminder of kindness and humanity that still resonates today. Source: The World According to Mr. Rogers (https://amzn.to/3RKWfzC)
Science is completely rethinking what it means to grow old. It’s not just about adding years — it’s about adding healthy years. And while diet and exercise pl...
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December 18, 2025 • 49 mins
Christmas tree fires are frightening, but they’re not the leading cause of house fires in the U.S. What’s surprising is how many fires start from everyday habits and household choices most people never think twice about. This episode begins with a look at several common yet overlooked causes of home fires. Source: https://www.bobvila.com/articles/fire-safety/#.Viz3ILerTIU
We alter our own memories far more than we realize. We forg...
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December 16, 2025 • 32 mins
Christmas decorations are meant to be cheerful — but some have been anything but. Over the years, certain holiday decorations have turned out to be creepy, hazardous, and even deadly. This episode begins with some of the strangest and most dangerous examples. https://www.epa.gov/radtown/radioactivity-antiques?utm
Many classic Christmas songs have surprising backstories. Brenda Lee was only 13 when she recorded Rockin’ Around the C...
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December 15, 2025 • 45 mins
Some people crave sweets, while others reach for salty snacks — and it’s not just habit. Your flavor preference is shaped by biology and brain chemistry. We begin with a look at what determines whether you’re wired for sugar or salt. Source: https://www.womenshealthmag.com/health/a19931521/why-some-people-have-a-sweet-tooth/
The holidays promise joy but often deliver stress. We push for perfection, try to meet expectations, and fo...
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