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For many, distinguishing between fact and fiction is difficult. Olemedia/E+ via Getty Images

6 important truths about COVID-19 vaccines

With the vaccines now being administered at sites around the US, it is important to address misinformation surrounding the effort.
Hydrogen sulfide is a stinky toxic gas, but it has health benefits when released in small amounts inside the body. That’s why eating more plant proteins is linked to longevity. (Shutterstock)

The surprising reason eating less meat is linked to a longer life: A smelly toxic gas

Hydrogen sulphide is a smelly, poisonous gas, but it plays an important role in aging and longevity. New research shows that eating less meat could be a key to harnessing its healthy effects.
Just 20 amino acids for chains in various combinations to create the thousands of varieties of proteins in our body. David Goodsell/ProteinDatabase

What is a protein? A biologist explains

A biologist explains where proteins come from and what role the 20,000 or so proteins in your body play in keeping you alive and kicking.
One slice is never enough. Radu Bercan/Shutterstock.com

Why does pizza taste so good?

Pizza might seem like a simple food, but it’s uniquely equipped to excite our brains and thrill our taste buds.
Canadian runner Leslie Sexton crosses the finish line as the fastest Canadian woman to compete in the Toronto Marathon on October 22, 2017. (THE CANADIAN PRESS/Christopher Katsarov)

Will a nutritional supplement help you run better?

New research aims to better understand the bodies of runners, so that ‘smart’ nutritional supplements can be developed.
General anesthetics affect cellular proteins to knock us out. Some do so better than others, especially the noble gas Xenon. (Shutterstock)

Science lesson: How anesthetics work, and why xenon’s perfect

How do anesthetics work, and what makes for an ideal anesthetic? It’s not as mysterious as once believed, and there’s a gas that ticks all the boxes for a perfect anesthetic: xenon.
Chocolate milk is well supported by research as ticking all the boxes for an effective exercise recovery drink. tracy benjamin/Flickr

Health Check: here’s what you need to know about protein supplements

The decision to use protein supplements is based more on marketing claims than anything else. They offer few real performance benefits that an athlete’s normal diet isn’t already delivering.
Impala drink at a waterhole in South Africa’s Kruger National Park. Milk used in paint nearly 49,000 years ago could have come from their early antecedents. EPA/Jon Hrusa

Paint gives clues about the ingenuity of ancient culture

It may have been a cultural tradition to use tempera paint that contained traces of milk on bodies according to a discovery at Sibudu Caves in KwaZulu Natal.
An excess of the one of the two amino acids in the artificial sweetener aspartame is a significant concern for people with phenylketonuria. Hugo Wetterberg/Flickr

Why artificial sweetener can be dangerous

When you buy a diet coke, or any other consumables containing the artificial sweetener aspartame, you’ll see a warning against consuming the product if you have phenylketonuria, an inherited metabolic…
Here I come, carrying seeds of life. skynoir

Building blocks of life could be formed on comets

No one knows how life began on Earth. But for it to happen, some simple chemical building blocks would have been needed. Many scientists argue the Earth’s violent past, with its massive volcanoes and regular…

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