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Health

Japan Aerospace Exploration Agency astronaut Aki Hoshide uses a vacuum cleaner aboard the ISS. A new study suggests the space station's sterility may be harmful to astronauts' health.

Is the ISS Too Clean for Astronauts’ Health? New Study Finds the Space Station Lacks Microbial Diversity

Humans have evolved alongside microbes in Earth’s environment that help strengthen our immune systems. But sterile living conditions can reduce that beneficial exposure

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Five Unusual Ways People Used Lead—and Suffered For It

Cultures throughout history have put lead to use for wacky and often deeply poisonous purposes

The crusading physician pictured circa 1915, just a few years after she began her game-changing research among industrial workers. 

How Alice Hamilton Waged a One-Woman Campaign to Get the Lead Out of Everything

At first a crusader for workplace safety, the trained physician railed against the use of the toxic and ubiquitous material

Doctors at NYU Langone Health recently performed a transplant surgery using a gene-edited pig kidney. The patient, Towana Looney, is now more than two months out from surgery and recovering well,

FDA Approves Transplant Trials for Gene-Edited Pig Kidneys

Two biotechnology companies will begin testing the procedures in patients suffering from kidney failure

Arthur Ashe playing tennis against Dennis Ralston in 1964

On This Day in History

The Death of a Sports Legend on This Day in 1993 Changed How Americans Viewed AIDS

Tennis star Arthur Ashe achieved many firsts as a Black athlete. In the months leading up to his death, he thrust AIDS advocacy into the mainstream

Researchers found higher levels of microplastics in brain tissue than in liver and kidney tissue.

The Human Brain May Contain as Much as a Spoon’s Worth of Microplastics, New Research Suggests

The amount of microplastics in the human brain appears to be increasing over time: Concentrations rose by roughly 50 percent between 2016 and 2024, according to a new study

Togo and his owner, musher Leonhard Seppala, in 1927

Discover Alaska

This Heroic Dog Raced Across the Frozen Alaskan Wilderness to Deliver Life-Saving Medicine—but His Contributions Were Long Overlooked

Togo, not Balto, was the driving force behind the 1925 Serum Run to Nome, which found teams of mushers and sled dogs delivering antitoxin to children suffering from diphtheria

Researchers are investigating oyster "blood" as a potential new treatment for antimicrobial-resistant pathogens.

Oyster ‘Blood’ May Be the Secret Weapon in Our Fight Against Antibiotic-Resistant Superbugs, Study Finds

In lab experiments, a protein found in the Sydney rock oyster made some antibiotics more effective and killed several types of illness-causing bacteria

President Donald Trump holds up an executive order. He signed dozens of executive orders on his first day in office, undoing many of his predecessor’s policies.

President Trump Orders the U.S. to Exit the World Health Organization and Paris Climate Agreement on His First Day in Office

The actions will take effect in a year, reinstating withdrawals he had set in motion during his first term

The dye, chemically known as erythrosine, has been used since 1907 to give candies, drinks and other foods their vibrant red color.

FDA Bans Red Dye No. 3 From Food, Beverages and Ingested Drugs, Citing Link to Cancer in Lab Rats

The synthetic additive found in thousands of food products will now be phased out by 2027, but advocates say the agency’s move is long overdue

Alzheimer's disease is the most common form of dementia.

U.S. Dementia Cases Are Poised to Rise to One Million Each Year by 2060, According to New Projections

As the American population ages, a new study finds the average lifetime risk of dementia for adults over 55 is around 42 percent—a higher rate than previously thought

U.S. Surgeon General Luther Terry shocked Americans by announcing that cigarette smoking is a major cause of lung cancer, throat cancer and chronic bronchitis.

On This Day in History

When the U.S. Surgeon General Shocked Americans by Announcing That Smoking Kills

The 1964 disclosure marked the first time many smokers had heard about the health dangers of tobacco

The Consumer Electronics Show (CES) 2025 took place in Las Vegas, Nevada, this week.

The Eight Coolest Inventions From the 2025 Consumer Electronics Show

A needle-free injection system, a bug-watching garden camera, a wearable that helps with memory lapses and more were unveiled at the annual Las Vegas trade show

The world’s first Covid-19 human challenge study was born in early 2021.

What Have We Learned From Intentionally Infecting People With Covid-19?

Challenge trials help researchers study immune responses. Skeptics still doubt the approach is worth the risks

Jimmy Carter tries to comfort 6-year-old Ruhama Issah at Savelugu Hospital in Ghana as a Carter Center technical assistant dresses Issah's Guinea worm wound. In May 2010, Ghana reported its last case of Guinea worm disease and announced it had stopped transmission a year later.

Jimmy Carter Worked to Eradicate the Vicious Guinea Worm Parasite, Slashing Cases by the Millions

The 39th U.S. president aimed to quash the debilitating water-based infection before he died. Through the Carter Center’s work, he came tantalizingly close, lowering the number of yearly cases from 3.5 million to just 14

The U.S. has reported 66 human cases of H5N1 bird flu since March 2024, but a recent death of a Louisiana resident marks the country’s first fatality from the virus.

Officials Report the First Human Death From Bird Flu in the U.S. Here’s What to Know About the Virus

The death of a Louisiana resident who was over the age of 65 signals that future H5N1 infections are not guaranteed to be mild, health experts say

At the same time as the Romans were building the Colosseum, they were also breathing in high amounts of toxic lead from silver mining and smelting operations.

Ancient Romans Breathed in Enough Lead to Lower Their IQs, Study Finds. Did That Toxin Contribute to the Empire’s Fall?

Using Arctic ice core samples, researchers estimate silver mining and smelting released enough lead during the Pax Romana to cause a 2.5- to 3-point drop in IQ

The U.S. surgeon general wants updated warning labels on alcoholic beverages that highlight the increased risk of cancer tied to drinking alcohol.

Alcohol Consumption Raises the Risk of Seven Cancers, Says U.S. Surgeon General in a New Health Advisory

The “Nation’s Doctor” has called for a cancer warning label on alcoholic beverages and suggests the recommended limits for alcohol consumption should be reassessed

From these upper hip bones, researchers extracted an ancient genome of the bacteria that causes syphilis.

Ancient DNA Offers Crucial Hints to the Origin of Syphilis, a Decades-Long Mystery That Has Divided Scientists

Researchers found evidence that early versions of syphilis-causing bacteria existed in the Americas long before the arrival of Columbus

Some people are genetically built to require less sleep than the rest of us.

Why Do Some People Thrive on So Little Sleep?

Short sleepers cruise by on four to six hours a night and don’t seem to suffer ill effects

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