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Articles on Blood

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The industrialization of the fishing industry and changes in the environment have raised many issues about the management of our fisheries. (Fanny Fronton)

Gulf of St. Lawrence: Analyzing fish blood can show us how healthy they are

Blood isn’t sterile, and analyzing the bacteria in it could help assess the health of fish and prevent the collapse of their populations.
Horseshoe crabs in spawning season at Reeds Beach, N.J., on June 13, 2023. AP Photo/Matt Rourke

Horseshoe crab blood is vital for testing intravenous drugs, but new synthetic alternatives could mean pharma won’t bleed this unique species dry

Horseshoe crabs play a unique role in medicine, but they’re also ecologically important in their home waters along the Atlantic coast. Can regulators balance the needs of humans and nature?
pexels sora shimazaki

How do I insert a tampon?

Lots of young teens and first-time tampon users are intimidated by tampons. But they’re easy once you get the hang of it.
Animals that shared the landscape with humans disappeared as the ice age ended. Mauricio Antón/Wikimedia Commons

Forensic evidence suggests Paleo-Americans hunted mastodons, mammoths and other megafauna in eastern North America 13,000 years ago

A forensic technique more often used at modern crime scenes identified blood residue from large extinct animals on spearpoints and stone tools used by people who lived in the Carolinas millennia ago.
Allowing gay and bisexual men to donate blood would help alleviate chronic blood supply shortages in the U.S. Petri Oeschger/Moment via Getty Images

Gay men can now donate blood after FDA changes decades-old rule – a health policy researcher explains the benefits

In 1983, during the early days of the AIDS epidemic, the US Food and Drug Administration made the decision to ban gay men from donating blood. Now, 40 years later, it is dropping that rule.
Sitting with legs crossed for prolonged periods may have negative health effects, expert warns. Polina Tankilevitch/Shutterstock

Why sitting with crossed legs could be bad for you

The science behind why crossing your legs while sitting could be detrimental to your health.
In what’s called ‘benign masochism,’ some people find the feeling of disgust pleasurable. Ocskaymark/iStock via Getty Images.

Why are so many people delighted by disgusting things?

Going out of your way to get grossed out might seem like a contradiction of human nature. But it serves a strong evolutionary purpose.
Researchers can test blood samples taken for other reasons to see if patients have previously had COVID-19. Don Bartletti/Los Angeles Times via Getty Images

COVID-19 official counts can miss mild cases – here’s how serosurveys that analyze blood for signs of past infection can help

Your blood can hold a record of past illnesses. That information can reveal how many people have had a certain infection – like 58% of Americans having had COVID-19 by the end of February 2022.

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