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...

Laughter is universal and unifying; it helps break the ice and is notoriously contagious. If you see a person or group of people laughing, the odds are high that you might also join the laughter train. Laughing along helps us cope with...

When you wake up, it takes some time to get the electrolytes flowing through the muscles in your hands again. That’s why you may not be able to make a fist right after waking up. This effect is more pronounced if you don’t wake up...

Discover the detailed process and passion behind traditional old-styled butchery. Learn how a skilled butcher turns various cuts of meat into culinary treasures, maintaining a connection to food's origins.

A neural pathway involved in a reflex response.
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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 Glossary Films...

A protein found in muscle tissue that performs a similar role to haemoglobin in the blood, as a carrier of oxygen that releases it to cells when required
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A Twig Science
Glossary Film.
Key scientific terms...

A collection of cells in an organism that have similar appearance, structure and function.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Wave-like muscle contractions, such as those used to move food through the digestive system.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

Discover how doctors use electricity in the human body to stimulate and suppress muscles - and save lives. Physics - Electricity And Circuits - Learning Points. Electricity is a useful tool in medicine and saves lives. An electric shock...

Some animals must migrate to reproduce. Pacific salmon migrate thousands of kilometres to spawn - an epic journey which ends in death. Biology - Ecosystems - Learning Points. Pacific salmon migrate thousands of miles to reproduce. Their...

The heart powers everything you do. It pumps without you thinking about it, and beats over a billion times in an average lifetime. But how does it work? Biology - Human Body - Learning Points. The heart is the hardest working muscle in...

Discover how Huntington's disease is passed on through a single gene. How does it progress, what are the symptoms and is there a treatment? Biology - Cells And DNA - Learning Points. Huntington's disease is a genetic disorder that is...

We dissect and examine the different parts of a sheep's eye. These include the iris, retina, aqueous humour, vitreous humour, optic nerve and the lens. The lens is also used to distort the pattern on a piece of card to demonstrate how it...

We dissect and examine a cow\u2019s heart to show the position and function of different parts. This includes the coronary artery, ventricles, atria, pericardium and the thickness of the muscle tissue. Biology - Human Body - Learning...

We dissect and examine a frog's leg and muscles. The skin is removed and the leg is bent back and forth to see how pairs of antagonistic muscles work. Biology - Human Body - Learning Points. Muscles contract to cause movement. Muscles...

Discover why fitness is not always obvious from appearance. Rather, it is a measurement of how well your body operates on a daily basis. Find out how BMI, heart rate and blood pressure indicate how fit you are. Biology - Healthy Living -...

Unspecialised cells that can divide repeatedly and develop into different types of specialised cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Your body uses many muscles beyond your control in order to keep functioning properly.
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Life processes - Body systems - Join
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Learning Points
Involuntary muscles
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Which uses more muscles: smiling or frowning?
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> Muscles are vital for movement.


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You don’t want any soreness or pain when speaking English. Pull together your favorite exercises to get you relaxed and warmed up. <br/>

In this PE lesson we take a look at the main muscles in the body, and how they’re used in specific sport skills. Muscles are made up of fibres that work together to create movement by pulling (or contracting) to get your...

Artisan butcher, Tracy Smaciarz of Heritage Meats, discusses key factors in evaluating the quality of beef carcasses. It covers aspects such as muscle confirmation, fat coverage, and color, providing insights into the butcher's expert...

2006, 25-year-old Jason DaSilva was on vacation at the beach with family when, suddenly, he fell down. He couldn’t get back up. His legs had stopped working; his disease could no longer be ignored. Just a few months earlier doctors...

Uncover the art of selecting and cooking the perfect steak. Learn about different beef cuts, the impact of collagen on tenderness, and how fat enhances flavor. Experience the scientific journey from pasture to plate, including how aging...