Cross-country skier Janine Shepherd hoped for an Olympic medal -- until she was hit by a truck during a training bike ride. She shares a powerful story about the human potential for recovery. Her message: you are not your body, and...

Scorpion venom and insect poison sound really deadly, but scientists are increasingly turning them into medical treatments that save millions of lives. Chapters CAPTOPRIL 1:18 SOUTH AMERICAN PIT VIPER Credit: Renato Augusto Martins 1:33...

Scientists have found a hidden network in the brain, and it might prevent people from developing certain diseases.

Take a mind-blowing trip to the lab as TED Senior Fellow Andrew Pelling shares his research on how we could use fruits, vegetables and plants to regenerate damaged human tissues -- and develop a potentially groundbreaking way to repair...

Humans know the surprising prick of a needle, the searing pain of a stubbed toe, and the throbbing of a toothache. We can identify many types of pain and have multiple ways of treating it - but what about other species? How do the...

Amyotrophic Lateral Sclerosis (ALS), also called motor neuron disease and Lou Gehrig's Disease, affects about two out of every 100,000 people worldwide. When a person has ALS, their motor neurons - the cells responsible for all voluntary...

Everyone experiences pain -- but why do some people react to the same painful stimulus in different ways? And what exactly is pain, anyway? Karen D. Davis walks you through your brain on pain, illuminating why the "pain experience"...

Join the Amoeba Sisters on this introduction to the Nervous System! This video briefly describes the division of the central nervous system (including going over some general areas of the brain) and the peripheral nervous system before...

It is now time to meet the system that helps your crazy brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and...

Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical...

Explore the cell cycle with the Amoeba Sisters and an important example of when it is not controlled: cancer. Table of Contents: 00:00 Intro 1:00 Cell Growth and Cell Reproduction 1:42 Cancer (explaining uncontrolled cell growth) 3:27...

We think of pain as a symptom, but there are cases where the nervous system develops feedback loops and pain becomes a terrifying disease in itself. Starting with the story of a girl whose sprained wrist turned into a nightmare, Elliot...

Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...

Today Hank talks about your central nervous system. In this episode we'll explore how your brain develops and how important location is for each of your brain's many functions.



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Central Nervous...

The vast majority of people who've lost a limb can still feel it - not as a memory or vague shape, but in complete lifelike detail. They can flex their phantom fingers and sometimes even feel the chafe of a watch band or the throb of an...

There are some diseases, like Zika or malaria, that get a lot of media coverage. However, every year, millions of people are infected with diseases that are just as deadly that we never hear anything about.

Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body.

In this video Paul Andersen explains the structures and functions of seventeen major parts of the brain. He begins with a quick discussion of brain evolution and ends with a review of the major parts presented inside the brainstem,...

Paul Andersen briefly surveys members of the Domain Animalia. He begins with brief description of the phylogeny of animals. He then describes the characteristics of all animals, heterotrophy, multicellularity, motility and blastula. ...

The Science of Opioids - How do opioids work? We look at the physiological processes that let opioids produce their effects in human bodies.

This vido outlines the structure of the human nervous system and describes the purpose and role of each element.

Jim Curtis is an award-winning health industry pioneer. But reaching the pinnacle of success, as he has today, was no cake-walk. Only after accepting the curveballs and challenges that life threw his way could Jim find...

Howcast - Learn what erectile dysfunction is in this Howcast video.

Animation about how Opioids effect the body. Describing the benefits and risks involved.