The people at Backyard Brains use a spiker box to turn me into a puppet.

Physiatrist and engineer Todd Kuiken is building a prosthetic arm that connects with the human nervous system -- improving motion, control and even feeling. Onstage, patient Amanda Kitts helps demonstrate this next-gen robotic arm.

Paul Andersen explains how we perceive our environment using our sensory system. He starts with a brief discussion of action potentials and the nervous system. He shows that we many more than five senses. He goes into more detail to show...

Paul Andersen describes four important homeostatic loops in biology. He begins with a brief description of the elements of a homeostatic loop. He then describes how the hypothalamus helps us maintain a stable internal body temperature....

Some doctors have actually found a connection between having parasitic worms and not having immune system problems like allergies or arthritis.

Between you and the rest of the world lies an interface that makes up 16% of your physical weight. This is your skin, the largest organ in your body: laid out flat, it would cover close to 1.7 square meters of ground. But besides keeping...

If you always end up soaked while your friends are barely glistening, you might have wondered why your sweat glands are so… sweaty.

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 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,...

That dent in your pinky from propping up your phone is more than a quirky mark—it could be a sign of real strain. Discover how this common grip can lead to issues like trigger finger and nerve compression, and learn the surprising...

Howcast - Learn about surgical causes of erectile dysfunction in this Howcast video.

Howcast - Learn how bicycle riding can cause erectile dysfunction in this Howcast video.

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

Howcast -Learn about palm reading, also known as palmistry, from psychotherapist and palm reading expert Ellen Goldberg, M.A. in this Howcast video.

After your hand has been at rest in a compressed position, it may become numb or fall asleep.

Introducing a revolutionary pain killing machine that uses small electric shocks to provide relief from severe back pain. Developed as an alternative to medication, this device blocks pain signals in the nerves without any side effects....

This video will help you understand the differences between the holiday blues and SAD, learn about the two types of SAD, and discover the possible causes and interventions for this seasonal mood disorder. Dr. Marks breaks down the...

When we experience anxiety, our sympathetic nervous system is activated and initiates the fight-or-flight response. This response is a host of physiological changes that prepare us to either fight or flee. One of the effects of the...

When our body sustains a wound, new cells are formed near the edges of the injury and then move down to the base of the wound. Once these cells have migrated to the center of the wound, they connect with other cells nearby. Once this...

In 2019, after a career in sales and marketing at CNN, NBC, and Viacom, Rita Omokha pursued her calling to become a reporter by enrolling at Columbia University's Graduate School of Journalism. Nervous about leaving a secure income, she...

Synaesthesia, or mixed sensory perception, leads people to "see" smells or "hear" colours. Why does this occur and what does this tell us about brain function? Biology - Being Human - Learning Points. Each of our senses has different...

Our bodies contain an intricate network of nerves and pathways which make up the Central Nervous System. How are they linked? And how do they connect different parts of our body to control bodily functions? Biology - Being Human -...

What does the brain look like and what does it actually do? What specific functions do the brain stem, cerebellum and cerebrum control? Biology - Being Human - Learning Points. The brain is the most complex object in the known Universe....