Could we survive prolonged space travel? - Lisa Nip
Adults Human
Prolonged space travel plays a severe toll on the human body: microgravity impairs muscle and bone growth, and high doses of radiation cause irreversible mutations.
Why Are Teens So Moody?
Adults Human
A look inside the teenage brain!
Will This Trick Your Brain?
Adults Human
Your eyes and brain are pretty amazing!
How the choices you make can affect your genes
Adults Human
Here's a conundrum: Identical twins originate from the same DNA ... so how can they turn out so different - even in traits that have a significant genetic component?
What Happened Before History? Human Origins
Adults Human
Humans. We have been around for a while now. When we think about our past we think about ancient civilizations, the pyramids, stuff like that. But this is only a tiny, tiny part of our history.
How Big Can a Person Get?
Adults Human
Some animals, like the blue whale, keep getting bigger and bigger over time! How big are humans able to grow?
What Happens When Your Brain Is Split
Adults Human
What Happens When Your Brain Is Split In Two - And You Survive?
Why do some people have seasonal allergies?
Adults Human
Ah, spring. Grass growing, flowers blooming, trees budding. For those with allergies, though, this explosion of new life probably inspires more dread than joy. So what's behind this annual onslaught of mucus? Eleanor Nelsen explains what happens when your immune system goes rogue.
The psychology behind irrational decisions
Adults Human
Often people make decisions that are not "rational" from a purely economical point of view - meaning that they don't necessarily lead to the best result. Why is that?
How Far Can We Go? Limits of Humanity.
Adults Human
Is there a border we will never cross? Are there places we will never be able to reach, no matter what? It turns out there are. Far, far more than you might have thought...
Why is being scared so fun?
Adults Human
At this very moment, people are lining up somewhere to scare themselves, be it with a thrill-ride or a horror movie. In fact, in October of 2015 alone, about 28 million people visited a haunted house in the US.
First Contact
Adults Human
Should We Contact Uncontacted Peoples?
Which Fish Did We Evolve From?
Adults Human
Today's oceans are full of fish with fins that couldn't evolve into limbs like ours. So, who are our ancestors and where did they go?
Is ADHD An Advantage?
Adults Human
Could ADHD be an evolutionary advantage?
How do schools of fish swim in harmony?
Adults Human
How do schools of fish swim in harmony? How do the tiny cells in your brain give rise to the complex thoughts, memories, and consciousness that are you?
Do Blind People Understand Vision? TommyEdisonXP
Adults Human
Tommy Edison, who has been blind since birth, talks about his understanding of vision, what impresses him about sight, and one fear that's motivated by blindness.
What would happen if you didn't drink water?
Adults Human
Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy? Mia Nacamulli details the health benefits of hydration.