How ADHD Medication Works

ADHD medication doesn’t simply give your brain more dopamine. It changes how dopamine signals are processed, making it easier to resist immediate distractions and stick with rewards that take longer t

What If You Never Slept?

Imagine never having to sleep again. To make it work, we’d need to reset and change a few things and in the end, you might not be human anymore. #kurzgesagt #inanutshell #kurzgesagt_inanutshell #learn

Can Earth Run Out of Water?

We’re using freshwater faster than nature can replace it, draining some sources beyond recovery. But avoiding water bankruptcy may be surprisingly affordable. #kurzgesagt #inanutshell #kurzgesagt_inan

What If Gravity Was 10% Stronger?

Just 10% more gravity doesn’t sound too bad. Until satellites fall from the sky, bridges collapse, planes struggle to fly and earthquakes shake the planet. On the bright side: more diamonds! #kurzgesa

Dust Is Not What You Think

Dust is everywhere, but it's not what most people think. Some of it can make you sick, some of it helps rain forests survive, and a tiny fraction is older than Earth itself. #kurzgesagt #inanutshell #

Why Ebola Keeps Coming Back

Ebola outbreaks can be contained, but ending them is another story. Conflict, fragile healthcare systems, and limited access to vaccines give the virus new chances to spread. Stopping one outbreak hel

How Stress Changes Your Brain

Stress can sharpen your focus, but only up to a point. Beyond that, it starts to impair memory, decision-making, and even your eating habits. Here's where the tipping point lies. #kurzgesagt #inanutsh

How Antidepressants Work

Antidepressants don't make people happy overnight. Instead, they slowly change how brain cells communicate, helping worn-down neural circuits recover over time. Here's why they take weeks to work, and

What the Flu Does to Your Body

The flu is often dismissed as just a bad cold, yet it still kills hundreds of thousands of people every year. Here's how influenza damages your body, why it can become deadly, and what it would take t

Why Humanity Will Never Leave The Solar System

🌎 Get an exclusive 15% discount on Saily data plans! Use the code "kurzgesagt" at checkout. Download the Saily app or go to: https://saily.com/kurzgesagt ⛵ Watch the Universe ✨die✨. The LIMITED EDITI

Building a Secret Moon Base

Deep inside the Moon’s permanently shadowed craters lies a hidden treasure: ice. If we can harness it for water, fuel, and construction, these frozen, lightless pits could become the perfect place for

The Deadliest Thing in Your Kitchen

Sugar, salt, cinnamon, saffron... which common kitchen ingredient is the deadliest? #kurzgesagt #inanutshell #kurzgesagt_inanutshell #learnwithshorts #science #poison #nutritionscience #nutritionfacts

The True Cost of War

War costs far more than weapons and destroyed buildings. It leaves countries poorer, disrupts education, drives migration, and passes trauma to future generations. Some of its highest costs are paid d

What is El Niño?

First noticed by South American fishermen in the 1600s, El Niño can affect the weather significantly! #kurzgesagt #inanutshell #kurzgesagt_inanutshell #learnwithshorts #science #elninoeffect #weathere

The World’s Most Average Person

If you averaged all 8 billion people together, what would you get? Meet the world’s most average person: where he lives, what he earns, what he eats, and how he’ll change over the next century. #kurzg

Processed Food Won’t Kill You

From bread and yogurt to frozen vegetables, most of us eat processed food every day. The real story is more complicated than “processed = bad”, and some processing can even make food safer and more nu

How Are Memories Stored Inside Your Brain?

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The Power of 1%

What could 1% of the richest countries’ income achieve? From malaria vaccines and clean water to renewable energy, a surprisingly small fraction of global wealth could transform millions of lives. #ku

Let’s Steal a New Moon

What if Earth could swap its Moon for a better one? From volcanic Io to methane-soaked Titan, the Solar System offers some tempting alternatives. But maybe our Moon is already perfect. #kurzgesagt #in

Your Brain Peaked at Birth

Babies may seem helpless, but their brains are incredible learning machines. They can hear sounds from any language, recognize faces adults can't, and build millions of neural connections every second

The Deadliest Year of Your Life

Which year of your life is the most dangerous? For many people, it’s not old age but infancy. Where you're born can dramatically change your chances of survival, and millions of child deaths are still