What Science Really Says About Sugar, Caffeine & Diet | Myth or Science (3/6)

In the final episode of Myth or Science, microbiologist Jennifer Gardy investigates one of humanity’s most overlooked and misunderstood substances: poop. Though commonly dismissed as disgusting waste, feces may contain remarkable clues about our health, our environment, and even the future of sustainable technology. Through a series of surprising experiments, Jennifer tests whether flushing a toilet spreads fecal bacteria around the bathroom, whether colon cleanses improve health, and whether visible corn in stool is evidence of poor digestion. She also explores what the shape, smell, frequency, and buoyancy of stool can reveal about the human body. Beyond personal health, the episode uncovers the wider scientific potential of waste. Researchers analyse sewage to track the health of entire communities, specially trained dogs locate orca feces to help protect endangered whales, and engineers transform sewage sludge into clean drinking water and energy. Jennifer even investigates whether dogs align themselves with the Earth’s magnetic field while defecating and how fish waste helps create tropical beaches. ------- Chapters ▷ 00:00 -The Hidden Power of Poop ▷ 01:38 - The Toilet Plume Experiment ▷ 05:44

What if everything we see, hear, taste, smell, and feel is less reliable than we think? In this documentary, Jennifer Gardy meets scientists using playful, bizarre, and revealing experiments to uncover how the brain builds our perception of reality. As illusions, taste tests, smell trials, touch experiments, and sound tricks expose the hidden links between the senses, the film shows that our experience of the world is not created by one sense at a time, but by a powerful multisensory system that can protect us, mislead us, and even make us feel things that are not really there. ------- Chapters ▷ 00:00 - How Our Senses Create Reality ▷ 01:47 - Seeing Is Believing? ▷ 05:35 - The Truth About Colour ▷ 07:07 - Tasting With Our Eyes ▷ 10:27 - Can Sound Change Taste? ▷ 14:10 - Can We Smell Danger? ▷ 20:02 - Nose Blindness and Bad Smells ▷ 21:24 - Do Names Change What We Smell? ▷ 26:39 - The Rubber Hand Illusion ▷ 32:45 - Can Seeing Make Us Itch? ▷ 37:19 - Can We Trust

Weather is powerful, beautiful, and sometimes deadly - but how much of what we believe about it is actually true? In Myth or Science 4: In the Eye of the Storm, Dr Jennifer Gardy puts popular weather claims to the test, from weighing clouds and reshaping raindrops to blasting aircraft with lightning and stepping inside a man-made tornado. With dramatic experiments and expert insight, this episode separates fact from fiction about storms, snow, rain, fog, lightning, and tornado safety, revealing the surprising science behind the weather that shapes our lives. ------- Chapters ▷ 00:00 - Intro: Weather Myths Put to the Test ▷ 01:13 - Do Clouds Really Have Weight? ▷ 06:27 - The Truth About Raindrops ▷ 11:08 - Is Fog Just a Low Cloud? ▷ 12:08 - Can Thunder Reveal a Storm’s Distance? ▷ 13:23 - What Happens When Lightning Hits a Plane? ▷ 20:16 - Lightning Safety: Trees, Homes and Hidden Dangers ▷ 22:18 - Are Overpasses Safe During Tornadoes? ▷ 30:38 - Can Crickets Predict the Temperature? ▷ 34:40 - Why Cold Snow Crunches Louder ▷

Think our modern cities are safe from the elements? Think again. In Naked Science Series 2 Episode 1, we uncover the terrifying reality of sudden, violent climate flips that can plunge the Earth into a mini ice age in less than a decade. From the 1998 Montreal ice storm that left 1.4 million homes without power to the ancient volcanic eruptions that literally erased summers, we look at how fragile our high-tech infrastructure truly is. Top scientists reveal data from two-mile-deep Greenland ice cores and warn of a staggering 50% chance that our ocean currents could shut down in the next 100 years. If the global conveyor stops, temperatures in major cities could plunge by 10 degrees, turning thriving metropolises into frozen, unlivable wastelands. This isn't slow, predictable cycles—this is an immediate threat to human survival. Licensed to Little Dot Studios. WONDER is packed with binge worthy reality documentaries for hours of entertainment. Check out our hub of diverse and empowering stories which explore the extreme side of life!

High in the northern peaks of Upper Italy, a massive geological transformation began twenty thousand years ago. The melting glaciers of the Ice Age carved out deep valleys, leaving behind scars in the terrain that formed spectacular bodies of water. Today, Lake Garda stands as the largest of these watery jewels, showcasing a dramatic contrast where harsh alpine environments meet a warm Mediterranean lifestyle. From the vertical mountain cliffs and treacherous historic roads to the isolated private islands that have stayed in family lines for generations, this landscape holds secrets of both survival and ancient engineering. Millennia of human presence remain etched into the shores, from prehistoric village ruins hiding ancient gold to the massive fortified medieval castles built directly over the water. This is the story of how nature and human ambition shaped Italy's most famous natural wonder.

The Battle of Okinawa was World War II’s bloodiest Pacific campaign - a brutal 82-day fight that changed history and shaped the end of the war. Discover what really happened. Step into the trenches of the Battle of Okinawa, where 180,000 American troops and 120,000 determined Japanese defenders clashed on a small island with global consequences. This video unpacks Operation Iceberg, revealing the strategic stakes, harrowing conditions, and the human cost of a campaign that cost over 150,000 lives and devastated Okinawa’s landscape. Witness the relentless kamikaze attacks, the tragic fate of the Yamato battleship, and the fierce battles for ridges and caves as both sides fought desperately for every inch. We’ll explore how Japanese defensive tactics and American firepower collided, why Okinawa was vital for the planned invasion of Japan, and how the shocking casualty toll ultimately influenced the decision to use atomic bombs. Through rare archival footage and firsthand accounts, relive the siege of Shuri Castle, the devastating impact on Okinawan civilians, and the psychological scars that still linger. Whether you’re a WWII buff or a student of