Capillaries are the body’s smallest blood vessels, and allow oxygen, nutrients and waste products to be delivered and removed from tissues.
European regulators are investigating a possible link between the vaccine and a second rare blood disorder.
Our bodies heal in some amazing ways. Scabs can be an important part of the healing process after we get a cut or a graze.
UK transfusion services are world-leading in being the first to take an approach based on the sexual behaviour of all donors.
New laws due this summer will allow gay men who have had the same partner for three months or more to give blood
Workmen dissecting a whale carcass in Antarctica, circa 1935.
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For 200 years, a small number of countries have exploited the marine wildlife of Antarctica, often with devastating impact on their populations.
Pink blood, green blood, or no blood at all – when it comes to what's inside a worm's body, the answer is more complicated – and fascinating – than you'd think.
Plasma is the yellow liquid component of blood. It is separated into its component proteins and used in medical treatments.
A potential shortage of crucial blood plasma highlights the case for paying Canadians for plasma donations, rather than continuing to import most plasma from the United States, where donors are paid.
Here’s some facts you ought to know.
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We're full of blood – around five litres, on average.
A century old therapy is being tested on patients with COVID-19.
Her deep breath has to get to the baby.
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A fetus needs oxygen long before its lungs work and it's exposed to the air. Some ingenious biochemistry explains how the mother's blood delivers it.
COVID-19 causes blood clots in some people. If these clots get into the lungs, brain or heart, they can cut off blood supply and oxygen, causing pulmonary embolisms, strokes or heart attacks.
Cold and sweet in the heat.
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Have you ever felt a piercing pain in your head when you eat something cold?
Testing blood provides answers about who has been infected.
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After your body fights off an infection, antibodies remain in your blood. Two researchers explain how tests identify these antibodies and what the data can be used for.
A person who has recovered from COVID-19 donates plasma in Shandong, China.
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Before a vaccine is available to teach your immune system to ward off the coronavirus, maybe you can directly use molecules that have already fought it in other people.
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Grisly early experiments laid the foundation of our understanding of how to keep organs 'alive' in isolation.
Our bodies are made up of cells that multiply to repair our organs. But organs like our liver and skin are better at regeneration than our brain.
We can answer this question by looking at the differences between the first, second and third layers of our skin.
It’s one of your body’s most basic vital signs.
Trying a new exercise routine? Strapping on a new wearable monitor? An expert in human physiology explains the ins and outs of your heart rate and why it's a valuable number to understand.
Blood has special traits unique to every person.
Every person's blood is identified by type. Why does this matter?
When you have a wound, your body gets to work straight away to clean it out, kill germs and repair the skin.
The body tries to plug a wound quickly to stop germs getting in through broken skin and making you sick. But behind the scenes, your blood is working hard to repair a wound.
When you’re feeling sick, your immune system is fighting to get you well again.
The white blood cells act as an army of fighting cells, protecting your body from bad cells known as germs. White blood cells can capture germs and even swallow them.