Why is my voice different when I hear a recording?
Adults Human
A weekly show where we endeavor to answer one of your big questions. This week, Kristina Bailey asks, "Why does our voice sound different when we hear an audio or video recording of it?"
Why Do We Cry?
Adults Human
Why does your face leak when you're sad or emotional?
Why Do We Have To Sleep?
Adults Human
Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here's a look at how sleep works, why we're not getting enough sleep, what happens if you DON'T sleep, and an idea about where sleep came from in the first place.
The benefits of good posture
Adults Human
Has anyone ever told you, "Stand up straight!" or scolded you for slouching at a family dinner? Comments like that might be annoying-but they're not wrong. Your posture is the foundation for every movement your body makes and can determine how well your body adapts to the stresses on it. Murat Dalkilinç gives the pros of good posture.
Can You Perceive Acceleration?
Adults Human
How do our eyes scan across a landscape? Contrary to popular belief, they don't scan smoothly across a scene, they observe a series of images. The eye is capable of panning smoothly however. If something moves in your field of view, your eyes track it smoothly.
New Human Ancestor Discovered: Homo naledi
Adults Human
Within a deep and narrow cave in South Africa, paleoanthropologist Lee Berger and his team found fossil remains belonging to the newest member of our human family. The Homo naledi discovery adds another exciting chapter to the human evolution story by introducing an ancestor that was primitive but shared physical characteristics with modern humans.
Can Technology Stop Aging?
Adults Human
In the movie Self/Less, an older man tries to stay young by uploading his consciousness to a younger body. Can technology prevent humans from aging?
Creating Bones From Glue
Adults Human
Liz Bonnin discovers how artificial bone grafts are being created using an everyday item found in every schoolroom.
Why do your knuckles pop?
Adults Human
Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives the facts behind joint popping.
Could We Clone Ourselves?
Adults Human
Is the science of Orphan Black realistic? Could we clone humans, or engineer them to have customized traits? We take a look at today's genetic engineering technologies to find out if designer babies and human cloning is, or should be, a reality.
Why do we get dark bags under our eyes?
Adults Human
A weekly show where we endeavour to answer one of your big questions. This week, "bored during school" asks, "Why do we get dark bags under our eyes when we're tired?"
Experiment Shows That All Of Us Are Naturally Altruistic
Adults Human
Put to work at the Max Planck Institute for Evolutionary Anthropology in Germany, Alan Alda finds out how children will help, and like it, while chimps are less inclined to offer enthusiastic assistance.
If superpowers were real: Super speed
Adults Human
What if super speed wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super speedy? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere mortals.
Why is yawning contagious? - Claudia Aguirre
Adults Human
*Yaaawwwwwn* Did just reading the word make you feel like yawning yourself? Known as contagious yawning, the reasons behind this phenomenon have been attributed to both the physiological and psychological. It's been observed in children as young as four and even in dogs! Claudia Aguirre visits the many intriguing theories that might explain contagious yawning.
Do your organs grow with you?
Adults Human
This week, Jen Alexander asks, "Do your organs grow with you?"