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How does your body process medicine?

Adults Human
Have you ever wondered what happens to a painkiller, like ibuprofen, after you swallow it? Medicine that slides down your throat can help treat a headache, a sore back, or a throbbing sprained ankle. But how does it get where it needs to go in the first place?
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How does asthma work? - Christopher E. Gaw

Adults Human
More than 300 million people around the world suffer from asthma, and around 250,000 people die from it each year. But why do people get asthma, and how can this disease be deadly? Christopher E. Gaw describes the main symptoms and treatments of asthma.
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Oxygen's surprisingly complex journey through your body - Enda Butler

Adults Human
Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach the cells deep inside your body? Enda Butler tracks the surprisingly complex journey of oxygen through your body.
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Are You Thinking About Breathing While You Read This? (Now You Are)

Adults Human
What really drives us to breathe? And how dangerous is it to hyperventilate and hold your breath?
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Your Brain Changes all the time, but Being a Mom Changes It Forever

Adults Human
Mother's bodies go through tons of changes before and after giving birth, but so do their brains! What really makes a mom's brain different?
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Using GPS to Get Around Is Making Us Dumber

Adults Human
GPS services have made getting from point A to point B a lot easier, but what effects does this have on our brains?
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How You Can Survive With Only One-Third of Your Blood

Adults Human
How much blood can a human lose without dying, and how does the body replenish that blood once it's gone?
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What Happens To Child Prodigies When They Grow Up?

Adults Human
Children who develop remarkable skills at an early age are often knowns at prodigies, but what happens to these kids once they grow up?
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The Unexpected Things Winter Does To Your Body

Adults Human
Everyone suffers a little in the winter, be it human or animal, but how does cold climate actually change your body?
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Why Isn't Our Hair Naturally Blue?

Adults Human
Human hair comes in a variety of colors; including brown, blonde, and black. Why doesn't it grow blue or green?
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Why humans are so bad at thinking about climate change

Adults Human
The biggest problem for the climate change fight isn't technology - it's human psychology.
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Why Some People Don't Feel Pain

Adults Human
Pain helps us survive, and yet some people are born without the ability to feel pain, how?
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Why do we itch? - Emma Bryce

Adults Human
The average person experiences dozens of individual itches each day. We've all experienced the annoyance of an inconvenient itch - but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to the itch, or is it simply there to annoy us? Emma Bryce digs deep into the skin to find out.
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5-Yr-Old Pool Prodigy

Adults Human
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?
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Everything Scientists Could Learn By Looking At Your Skull

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

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

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