Last week, the World Health Organization announced that a malaria vaccine has finally made it through all the regulatory hurdles and is being distributed in the country of Malawi. Learn how it works and why it’s taken so long to develop...

This week's SciShow news has Hank bringing us a primer on the science behind various illegal and illicit ways in which athletes "improve" their bodies, proof of general relativity that we can actually see, and a new way to measure how...

High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...

More than half of Americans take a dietary supplement, but the truth is, most people don't need them. There are, however, a handful of supplements that can be helpful in some situations!

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Researchers have revealed a potentially life-saving rapid blood type test, and does using GPS to get around make your brain lazy?

Last week, the World Health Organization announced that a malaria vaccine has finally made it through all the regulatory hurdles and is being distributed in the country of Malawi. Learn how it works and why it’s taken so long to develop...

High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...

Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function.

Every organism is made up of cells, but what exactly is a cell?
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In this video, we explore the pathway for red blood cell destruction including the full degradation of heme b from the liver and spleen to renal and gastrointestinal elimination.

This video explores the functions of bones beyond providing structure and support. It takes a deep dive into the inside of bones, discussing the different types of bone tissue and their roles in maintaining health and wellness. The video...

In this video, we discuss 4 mechanisms by which oxygen's affinity for hemoglobin decreases, facilitating increased oxygen delivery to tissues.<br/>[1] He<br/>at
[2] B<br/>ohr E<br/>ffect
[3] Haldane Effect
[4] 2,3-BPG

The circulatory system works to transport oxygen and nutrients to cells in your body, while removing waste products (such as carbon dioxide) at the same time. This system is actually a double circulatory system, made of two circuits -...

Shown are red blood cells (erythrocytes, red), which transport oxygen, white blood cells (leucocytes, white), part of the immune system, and platelets (thrombocytes, yellow), which are active in blood coagulation (clotting)

3d illustration Universal blood , red blood cells with enzyme in motion

Erythrocytes or red blood cells flowing through a capillary in a toad tadpoles tail. The ellipsoidal shape is typical for amphibian red blood cells.

Animation of red blood cells and lymphocytes pumping through blood vessels to camera

Abnormal red blood cells under microscope 400X

CU microscopic view of red blood cells, Erythrocytes with white blood cells, Neutrophylls and bacteria

Human blood smear show normal red blood cells under microscope 1000X

Human blood smear show Target cells in Thalassemia disease under microscope 1000X

BCU Blood flowing through blood vessels, individual red blood cells or corpuscles visible

Close Up push-in - Toxoplasmosis parasites travel with red blood cells through a vein in a computer-generated animation.

Abnormal red blood cells under microscope 1000X