Explain It Like I’m 5

Why do we get sick? And is a cold really just our body being overdramatic? In this episode of Explain It Like I’m 5 , Alex dives into the sneezes, sniffles, and science of sickness. From bacteria, viruses, fungi, and parasites to the immune system’s dramatic defense strategies (fever, mucus, sneezing at 100 mph), we’ll explore why being sick often feels worse than the germ itself. Learn why some p...

How do airplanes—giant metal tubes weighing hundreds of tons—somehow stay in the sky? And why don’t they just flap their wings like birds? In this episode of Explain It Like I’m 5 , Alex unpacks the physics of flight in plain English. From the four forces of flying (lift, weight, thrust, drag) to how wings create lift through Bernoulli’s principle and Newton’s third law, we break down what keeps a...

Why do we wrinkle, slow down, and creak with age, and is there any way to hit “pause”? In this episode of Explain It Like I’m 5 , Alex breaks down the science of aging in the simplest terms possible: from the Hayflick limit and telomeres (your DNA’s shoelace caps), to oxidative stress, cellular “garbage,” and a tired immune system. We’ll explore why evolution doesn’t bother keeping us young foreve...

How did language begin, and did someone actually invent the first word? In this episode of Explain It Like I’m 5 , Alex unpacks one of humanity’s biggest mysteries: the origin of language. From early grunts and gestures to full-blown grammar, we explore how humans evolved from pointing and miming to building vocabularies, writing systems, and even emojis. You'll learn about theories like the Bow-W...

Why do humans shed emotional tears, and why does our nose run when we cry? In this episode of Explain It Like I’m 5 , Alex breaks down the science of crying: the three types of tears (basal, reflex, and emotional), why humans are the only species that cry from feelings, and how crying acts as an emotional release valve for your brain and body. Learn how tears flush out stress, trigger endorphins,...

What exactly is DNA, and is it really just an instruction manual for building you? In this episode of Explain It Like I’m 5 , Alex unpacks the science behind DNA—from the famous double helix to the role of genes, chromosomes, and those four magical letters: A, T, C, and G. Discover how your DNA works like a giant recipe book, what makes mutations both dangerous and amazing, and how much of your id...

Why do humans lie, even when we know it's wrong—and can our dogs actually tell? In this episode of Explain It Like I’m 5 , Alex breaks down the psychology and science of lying: why people tell white lies, fibs, and full-on whoppers; what goes on in your brain when you deceive someone; and how lying starts in childhood. Plus, we dig into the big question every dog owner secretly asks, can dogs dete...

Why does music move us, literally and emotionally? In this episode of Explain It Like I’m 5 , Alex breaks down the science of music: how simple vibrations become pitch, rhythm, and harmony; why your brain releases dopamine when you hear your favorite song; and how rhythm syncs with your body and makes you want to dance. From tribal drums to frisson chills, we explore how music connects us, shapes...

Rules can feel annoying. But have you ever stopped to ask: Why do we even have rules? And seriously, who came up with “no running with scissors”? In this laugh-and-learn episode of Explain It Like I’m 5, host Alex unpacks the origin of rules, why humans need them, and how they’ve shaped everything from classrooms and kitchens to governments and playgrounds. Spoiler: rules aren't just power plays b...

We plug in our phones, flip on the lights, microwave pizza rolls… but what actually is electricity? And is the stuff in your walls just tamed lightning? In this high-voltage episode of Explain It Like I’m 5, host Alex takes on one of the most used—and least understood—forces in your daily life: electricity. From electrons to outlets, from lightning bolts to laptop chargers, this episode breaks it...

We spend about a third of our lives asleep—but have you ever wondered why ? Or why a quick nap sometimes makes you feel more tired than before? In this eye-opening episode of Explain It Like I’m 5, host Alex breaks down the mysterious science of sleep, answering two questions we all think about: 👉 Why do we sleep? 👉 Why do naps sometimes leave us groggy and confused? Get ready for a fun, easy-to...

Is the internet just floating in the sky? Is it made of magic—or cat videos? In this episode of Explain It Like I’m 5, we’re asking a question you’ve definitely thought about: What is the internet actually made of? And the bonus question: Can you visit it without a password? Join host Alex as we explore the surprisingly physical world behind the digital one. Spoiler: the internet isn’t a cloud—it’...

What is gravity, really? Is it just the Earth lovingly hugging us... or something much weirder? In this episode of Explain It Like I’m 5, host Alex breaks down the mystery of gravity—one of the most familiar and yet least understood forces in the universe. From falling apples and bouncing astronauts to black holes and bending space-time, we’ll answer the big question: How does gravity work? Using...

Ever wondered if the internet is a real place you can visit, maybe with a granola bar and a passport? In this laugh-out-loud yet genuinely enlightening episode of  Explain It Like I’m 5 , we break down the question:  What is the internet? From underwater cables and blinking server rooms to “the cloud” (spoiler: it’s just someone else’s computer), host Alex takes you on a funny and fascinating jour...

Ever wonder what’s really beneath your feet—or if you could dig a tunnel straight through the planet to pop out in China? In this fun and fiery episode of Explain It Like I’m 5, host Alex digs into one of the most iconic science questions of all time: What’s inside the Earth? And while we’re at it… could you actually dig a hole to China? Spoiler: probably not, unless you enjoy lava soup, extreme p...

Are we alone in the universe? Or is it possible that intelligent alien life is out there—and we’re just missing the message? In this mind-expanding episode of Explain It Like I’m 5 , host Alex dives deep into one of humanity’s biggest cosmic questions: Do aliens really exist? And if so, why haven’t they contacted us? From the staggering size of the universe to the famous Drake Equation, the puzzli...

In this episode of  Explain It Like I’m 5 , we tackle one of the biggest, weirdest, and most universal questions ever: What happens when you die? Host Alex breaks it down in a way that’s clear, comforting, and (surprisingly) kind of funny. From what science knows about the body shutting down, to what religions and spiritual traditions say happens next, to how philosophers and regular humans deal w...

Everybody does it, but why? In this hilariously factual episode of  Explain It Like I’m 5 , we break down the science of poop, from how your digestive system works to why it smells, what it’s made of, and what happens if you  don’t  go. We’ll cover: The full (and funny) journey from burrito to bathroom What poop is actually made of (hint: it’s not just food waste) How fiber, hydration, and diet af...

Do animals actually  understand  us or are they just great guessers with perfect timing? From parrots that know colors and numbers, to gorillas using sign language, to prairie dogs with “yellow shirt human” alarm calls, this episode dives into the wild world of animal communication. We’ll explore famous talking animals like Alex the African grey parrot, Koko the gorilla, and Kanzi the bonobo, plus...

Ever wonder why a minute has 60 seconds or an hour has 60 minutes? Why not 100? Or 42? In this episode of Explain It Like I’m 5, host Alex unpacks the surprisingly weird, ancient, and math-filled story behind how humans learned to measure time, and why we still follow a Babylonian system from 4,000 years ago. You’ll learn: Where our 60-second minute and 60-minute hour actually come from (hello, Ba...

Ever wondered  what the stock market actually is, and whether it’s more like a serious financial system or a high-stakes game of Monopoly? In this episode of Explain It Like I’m 5, host Alex breaks down the basics of the stock market in a way that’s simple, funny, and surprisingly enlightening even if you’ve never bought a single share in your life. You’ll learn: What stocks and shares are Why com...

From ancient gods to modern faiths, from sky spirits to spaghetti monsters why  are  there so many religions in the world? In this episode of Explain It Like I’m 5, host Alex breaks down one of humanity’s biggest questions in a way that’s smart, simple, and surprisingly fun. We’ll explore: Why early humans created stories to explain life, death, and nature How geography, culture, and history shape...

What  is  a black hole, really? Is it a space monster gobbling up stars or just misunderstood cosmic science? In this episode of Explain It Like I’m 5, host Alex breaks down the wild world of black holes into fun, bite-sized facts even your socks can handle. We’ll explore: What black holes are and how they form Why they’re invisible—but still very real What happens if something crosses the event h...

Ever wondered how vaccines actually work, or why people say they “train” your immune system? In this episode of  Explain It Like I’m 5 , we break down how vaccines protect your body, how your immune system fights viruses and bacteria, and what really happens after you get a shot. Host Alex explains complex science in plain language, covering: What is a vaccine and how does it work? The role of whi...

What is quantum physics, and why does it seem so strange? In this beginner-friendly episode of  Explain It Like I’m 5 , we break down the basics of quantum mechanics in plain English, no equations, just clear explanations. Learn about superposition, wave-particle duality, quantum entanglement, the observer effect, and Schrödinger’s famous cat thought experiment. Host Alex explores why the quantum...