If you lined up all the blood vessels in your body, they'd be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to the body's tissues. What effect does this pressure have on the walls...

Are penises as big of a deal as we think they are? In this episode of Crash Course Sex Ed, we break down the history, myths, and assumptions we’ve made about penises, from the “right” size to circumcision, and from erections to blue balls.

Howcast - Learn how to treat congestive heart failure from Dr. Dennis Finkielstein in this Howcast video.

Howcast - Learn if you should avoid foam rolling when you're sore in this Howcast video featuring certified NYC trainer Amanda Edell.

Howcast -If you find yourself feeling worn out, break free of those doldrums and give you back your pep.

Animation showing the build up of plaque in the arteries, slowing or blocking the flow of blood in the body

An animation of a heart bypass procedure

What happens in a heart attack

An animated look at coronary artery disease

Animation showing how high blood pressure effects the body and describes what to know when checking your blood pressure.

Sitting for long periods can cause blood clots due to impeded flow of blood. Sitting without moving much can cause the blood to clot according to the effects of gravity. This doesn’t happen during sleep since we do move our bodies during...

A protein found in red blood cells that binds and transports oxygen in the blood.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

The stage of development an organism goes through inside the womb, following the initial development of the embryo.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...

A type of lipid found in the tissues of humans and other animals.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

Marine mammals like dolphins, seals and whales can hold their breath far longer than humans. How do they do this?



Biology - Human Body - Learni

ng Points.

Underwater mammals, such as humpback whales, can...

What the discovery of a skeleton over 2,000 years old tells us about the training techniques of ancient olympians. Biology - Human Body - Learning Points. In 1959 the tomb of an ancient Olympian was discovered in Taranto, southern Italy....

If you want to learn how blood flows through the heart, but in a jolly way, check out this rendition of "A Blood Flow Christmas Carol". You'll learn about everything from the vena cavas, the atria and...

Explore effective ways to shield your body from severe cold conditions, as demonstrated during a harsh winter in Chicago with record low temperatures. Learn why our lips crack and fingers numb, and discover preventative measures from...

Researchers are using adult stem cells to build new arteries and improve blood flow in patients with heart conditions. In a study involving over 100 patients, significant improvements were seen in blood flow and heart muscle function...

Introducing the latest innovation in emergency medical care: a portable chest compressor that delivers precise and tailored chest compressions for optimal blood flow to the brain and heart. This cutting-edge device calculates the...

This video delves into the intricate preparations animals undertake for hibernation, including creating hibernacula or dens and the various triggers that signal the start of hibernation. It explains the differences between hibernation...

Explore the intricacies of Peripheral Artery Disease (PAD) with this visually captivating animation. Using a creative storytelling approach and the metaphor of a distribution chain, you'll discover how the arteries face restricted blood...

In this video, Justin from the Institute of Human Anatomy discusses the effects energy drinks have on the body, and specifically the nervous system.

In this video, Justin from the Institute of Human Anatomy discusses the frontal cortex of the brain, it's numerous sub-regions, and their fascinating functions.