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How You Can Survive With Only One-Third of Your Blood

AdultsHealthHumanScience...
How much blood can a human lose without dying, and how does the body replenish that blood once it's gone?

Why Some Old People Act Half Their Age: It's in the Brain

AdultsHumanMental HealthScience
Scientists are studying people over 80 whose memories are just as good as someone in their 50s. What sets these 'SuperAgers' apart?

The Unexpected Things Winter Does To Your Body

AdultsBiologyHumanNature...
Everyone suffers a little in the winter, be it human or animal, but how does cold climate actually change your body?

Why Isn't Our Hair Naturally Blue?

AdultsBiologyHumanScience
Human hair comes in a variety of colors; including brown, blonde, and black. Why doesn't it grow blue or green?

Why humans are so bad at thinking about climate change

AdultsGlobal WarmingHumanPsychology...
The biggest problem for the climate change fight isn't technology - it's human psychology.

Why Some People Don't Feel Pain

AdultsHealthHumanNeuroscience...
Pain helps us survive, and yet some people are born without the ability to feel pain, how?

Dogs and Humans: A 30,000-Year Friendship

AdultsHistoryHumanPets...
Of all the species that humans have domesticated, dogs are our oldest animal friends. But how did a group of wolves become the furry pup at the end of the bed? New research is finally unlocking the paw-in-hand evolution of dogs and humans. In this episode we're answering one big question: Did we domesticate dogs, or did dogs domesticate us?

5-Yr-Old Pool Prodigy

AdultsHumanSportsFamily...
Meet Keith O'Dell, a bonafide pool playing prodigy. At just five years old, Keith pockets balls like a pro. The sport is in Keith's genes - his parents play pool, his grandparents play pool, the family even eats dinner on the pool table. His father says Keith was "born to play pool." The question is, how will his incredible talent effect the life ahead of him?

Everything Scientists Could Learn By Looking At Your Skull

AdultsBiologyHistoryHuman...
Our skulls are all unique, but they also share characteristics across groups of people. Scientists can use this information to learn a lot about the previous "owner" of the skull.

How does your body know what time it is? - Marco A. Sotomayor

AdultsHumanMental HealthScience...
Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that's hurtling towards us. And we owe all these abilities to an interconnected system of timekeepers in our brains. But how do they work? Marco A. Sotomayor details how human bodies naturally tell time.

We Got Our DNA Tested, Here's How It Actually Works

AdultsGeneticsHumanScience...
Trace and Amy get their DNA test results, and we talk to an expert about how scientists actually get genetic information out of DNA.

Why Can't Chimpanzees Speak?

AdultsAnimalsHumanLanguage...
Chimpanzees are very smart animals, so why can't they speak? Tara is here to explain how a gene mutation allows humans to speak, but not chimps.

Here's what happens to your knuckles when you crack them

AdultsHealthHumanScience
One man cracked his knuckles in one hand for 60 years and not the other. Watch the video to see what he found out.

Proof of evolution that you can find on your body

AdultsAnimalsHumanScience...
You have your mom's smile, your dad's eyes, and the ear muscles of a Triassic mammal.

Weird Things Your Body Does When You're Around Your Crush

AdultsBiologyHumanRelationships...
Love has some strong effects on our bodies. From blushing to sweating, why do we react the way we do when facing a crush?

All That We Share

AdultsCultureHumanSociety
We live in a time where we quickly put people in boxes. Maybe we have more in common than what we think? Introducing All That We Share. The English version.

The Immune System Explained I - Bacteria Infection

AdultsBiologyHealthHuman...
Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival.