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Blood – Analysis and Comment

Blood has special traits unique to every person. TippaPatt/www.shutterstock.com

What are blood types?

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. Shutterstock/Yakobchuk Viacheslav

Curious Kids: how do wounds heal?

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.
Here’s what’s happening in your body if you’re feeling faint. William Moss/Shutterstock.com

Why do people faint?

Most of the time, different parts of your nervous system work in balance. But sometimes things can get out of whack – and that’s when you might end up experiencing what medics call syncope.
Activated platelets (purple) on their way to heal a wound. Sebastian Kaulitzki/Shutterstock.com

Platelets: The chameleons of cancer biology

Platelets heal wounds. But they also seem to play a paradoxical role in both promoting and inhibiting the growth of solid tumors.
Photo by Mikhail Vasilyev on Unsplash

Curious Kids: do ants have blood?

Ants have something similar to blood, but it’s called haemolymph. Some insects use it in unusual ways. When threatened by a predator, blister beetles can squirt haemolymph from their knees.
More than 80 per cent of the plasma Canada now uses for medical purposes comes from paid donation in the United States. (Shutterstock)

Why Canadians should be paid for blood plasma donation

Canada suffers a shortage of vital blood plasma. Paying donors, through a non-profit like Canadian Blood Services, would secure a local supply without lining the pockets of corporate shareholders.
Blood has always been a symbol of life and has been thought to counteract the ageing process. Mai Lam/The Conversation NY-BD-CC

Young blood: magic or medicine?

Recent scientific studies have claimed that transfusions of blood from teenagers can help delay or reverse the ageing process. Do they stack up?