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  • Why Do We Drink Water

    Why Do We Drink Water
    Jan 20 2026
    Water is everywhere—but why do we actually need to drink it to survive? In this episode, we break down the science of hydration and explain the vital roles water plays in the human body. From regulating body temperature and transporting nutrients to supporting brain function and cellular chemistry, water is at the center of nearly every biological process. We’ll also explore what happens when you don’t drink enough, how hydration needs vary by age and activity, and common myths about water intake. A clear, science-backed look at why water isn’t just refreshing—it’s essential for life.

    Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.
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    24 Min.
  • You Need To Quit Weed

    You Need To Quit Weed
    Jan 11 2026
    Cannabis is often labeled as harmless—but is it really? In this episode, we take a science-based look at marijuana use and explore when, why, and how it can start doing more harm than good. From brain chemistry and motivation to mental health, sleep, memory, and long-term dependence, we break down what research actually says about frequent weed use.
    We discuss how cannabis affects dopamine, productivity, emotional regulation, and anxiety, why quitting can be harder than expected, and what withdrawal really feels like. This episode also examines who is most at risk, how tolerance quietly builds, and why “everyone’s doing it” isn’t a reliable measure of safety.
    This is not a moral lecture—it’s an honest conversation about health, habits, and making informed choices in a world where weed is increasingly normalized.

    Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.
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    47 Min.
  • Principles and Foundations of the Natural Sciences

    Principles and Foundations of the Natural Sciences
    Jan 8 2026
    What are the fundamental principles that govern the natural world? In this episode, we explore the core foundations of the natural sciences—physics, chemistry, biology, and earth science—and how they work together to explain reality. From observation and experimentation to scientific laws, theories, and models, we examine how knowledge is built, tested, and refined over time. The episode also highlights key concepts such as causality, energy, matter, evolution, and systems thinking, revealing how these ideas unify diverse scientific disciplines. Whether you’re a student, a curious learner, or a science enthusiast, this episode offers a clear and engaging roadmap to understanding how science explains the universe.

    Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.
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    46 Min.
  • Thyroid Disorders and Clinical Management

    Thyroid Disorders and Clinical Management
    Jan 4 2026
    Thyroid disorders affect millions of people worldwide, yet they often go undiagnosed or misunderstood. In this episode, we explore the science and clinical management of common thyroid conditions, including hypothyroidism, hyperthyroidism, Hashimoto’s disease, Graves’ disease, and thyroid nodules. We break down how the thyroid gland regulates metabolism, energy, growth, and hormone balance—and what happens when this system goes wrong.
    You’ll learn to recognize key symptoms, understand diagnostic tools such as blood tests and imaging, and gain insight into modern treatment options ranging from medication and lifestyle management to surgery and radioactive iodine therapy. This episode provides a clear, practical overview for anyone interested in endocrine health, medical science, or improving patient awareness and outcomes.

    Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.
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    28 Min.
  • Scientific Horizons: The 2025 Year in Review

    Scientific Horizons: The 2025 Year in Review
    Dec 31 2025
    As 2025 comes to a close, this episode takes a sweeping look at the scientific breakthroughs, discoveries, and debates that shaped the year. From major advances in artificial intelligence and medical research to new insights in space exploration, climate science, and quantum technology, Scientific Horizons: The 2025 Year in Review breaks down what mattered most—and why. We explore how these developments are already influencing everyday life, the ethical questions they raise, and the discoveries that could redefine the future. Whether you’re a science enthusiast or just curious about where humanity is headed, this episode offers a clear, engaging snapshot of the year that pushed the boundaries of knowledge.

    Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.
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    52 Min.
  • Stranger Things Physics Explained

    Stranger Things Physics Explained
    Dec 27 2025
    What if the science behind Stranger Things isn’t as fictional as it seems? In this episode, we break down the real physics concepts hidden beneath the show’s supernatural storylines—from parallel universes and alternate dimensions to electromagnetism, energy fields, and the limits of human perception. How close is the Upside Down to real multiverse theories? Could portals, telekinesis, or time distortion ever exist according to modern physics? We separate cinematic fantasy from scientific fact, using real-world theories to explain what Stranger Things gets right, what it exaggerates, and what remains purely science fiction. Perfect for fans of the show and anyone curious about how pop culture intersects with real physics.

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    34 Min.
  • Why you should not wear metal in an MRI machine

    Why you should not wear metal in an MRI machine
    Dec 23 2025
    MRI machines are among the most powerful medical tools ever built—but they’re also incredibly dangerous if basic rules are ignored. In this episode, we break down why wearing metal in an MRI machine can be life-threatening. From the extreme magnetic forces that can turn everyday objects into deadly projectiles to the science behind radiofrequency heating and electrical currents inside the body, we explain what really happens when metal meets an MRI. You’ll hear real-world incidents, the physics behind the risks, and why even tiny metallic items—jewelry, implants, or forgotten coins—can cause serious injury or equipment damage. A must-listen for anyone curious about medical technology, patient safety, and the hidden power of magnets.

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    27 Min.
  • Why Does Earth Have Seasons?

    Why Does Earth Have Seasons?
    Dec 19 2025
    Earth’s seasons are not caused by how close we are to the Sun, but by the planet’s axial tilt. In this episode, we explore how Earth’s 23.5-degree tilt affects the angle and intensity of sunlight received across different regions throughout the year, creating the cycle of spring, summer, autumn, and winter.
    You’ll learn how the tilt influences day length, solar energy distribution, and temperature changes, and why the Northern and Southern Hemispheres experience opposite seasons at the same time. We also clarify common misconceptions—such as why Earth is actually closest to the Sun during Northern Hemisphere winter—and examine how seasons differ near the equator and the poles.
    This episode offers a clear, science-based explanation of one of Earth’s most familiar yet often misunderstood natural phenomena.

    Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

    This episode includes AI-generated content.
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    49 Min.