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Health
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Human
S2 E3
How Your Digestive System Fights Pathogens
The digestive system does more than break down food — here's how it fights pathogens and why it’s so important for survival.
S2 E3
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Human
S2 E2
How Does Inflammation Work in Your Body?
Inflammation is a natural biological process, and we need some of it to keep us safe — here’s why inflammation is necessary for survival.
S2 E2
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SICK
S5 E4
Why the Bubonic Plague Still Exists Today
The bubonic plague isn't a disease of the past — it still exists today, and here's why.
S5 E4
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SICK
S5 E3
Why Isn’t There a Cure For the Common Cold?
The common cold is the most common human disease in the world — here's why we haven't found a cure yet.
S5 E3
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Human
S2 E1
Why Do Humans Get So Many Sinus Infections?
Sinus infections are incredibly common — here's why humans are so prone to getting them.
S2 E1
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Health
By Seeker
The First Full-Size 3D Print of a Human Heart Is Here
A team at Carnegie Mellon University has just developed the first flexible, full-size, 3D-print of a human heart.
By Seeker
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Elements
S1 E198
The COVID-19 Vaccines Are Here. So What Happens Next?
The COVID-19 vaccines have arrived — here's what we know about the distribution plan.
S1 E198
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Health
By Seeker
If the Coronavirus is Mutating, What Does That Mean For Us?
SARS-CoV-2, the virus responsible for the COVID-19 pandemic, is mutating — here's what that means for us.
By Seeker
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Seeker Baby
S1 E8
This Is What Makes Babies Spit Up
Here's why babies spit up and why they eventually stop.
S1 E8
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Elements
S1 E197
The Average Human Body Temperature ISN’T 98.6°F Anymore
New studies have uncovered that the average human body temperature is actually lower than 98.6 degrees Fahrenheit.
S1 E197
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Seeker Baby
S1 E7
What Can Babies Actually See?
Here's how doctors test what babies can see.
S1 E7
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Seeker Baby
S1 E6
The Many Benefits of Skin-to-Skin Care
Skin-to-skin care is critical for babies, but the benefits go both ways.
S1 E6
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