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Health

Illustration of a human cancer cell

How Do Cancer Cells Migrate to New Tissues and Take Hold?

Scientists are looking for answers about how these confounding trips, known as metastases, occur throughout the human body

Posters, newspaper advertisements and radio shows promoted carrots' health benefits.

Carrots Can’t Help You See in the Dark. Here’s How a World War II Propaganda Campaign Popularized the Myth

The British government claimed that eating carrots helped its fighter pilots shoot down German planes at night. In truth, the Royal Air Force relied on top-secret radar

Chloe Yehwon Lee was a finalist in the 2025 Regeneron Science Talent Search, the most distinguished STEM competition for high school seniors in the United States.

This 17-Year-Old Scientist Is Making an Acetaminophen Alternative That Is Less Damaging to the Liver

Chloe Yehwon Lee’s research could change the painkiller, known by the brand name Tylenol, for the better, ultimately reducing emergency room visits and cases of liver failure

More than a third of endometriosis patients are misdiagnosed with mental health conditions.

For Some Women With Serious Physical Ailments, Mental Illness Has Become a Scapegoat Diagnosis

Patients with difficult-to-diagnose conditions like endometriosis are often sent home with diagnoses like anxiety or bipolar disorder

The city of Potosí rests at high altitude in Bolivia.

Can Researchers Find Remedies for the Problems Created by High-Altitude Pregnancies?

In people not adapted to life at altitude, the sparse oxygen can impair fetal growth, causing issues that can last a lifetime

Developed by Australian biomedical engineer Daniel Timms, the titanium heart device is being used as a stopgap until patients can undergo transplant surgery with a donor heart.

Australian Man Makes History by Living With a Titanium Heart for More Than 100 Days Before Receiving a Transplant

The man, who was in his 40s and suffering from severe heart failure, was also the first person to leave the hospital with a titanium heart. He is recovering well after getting a new, donor heart

Researchers studied the impact of extreme heat on older adults' "epigenetic clocks," which measure aging-related changes to DNA.

Extreme Heat Could Make Older Adults Age Faster by Altering Their DNA, Study Finds

Researchers compared genetic markers of aging to daily temperature records in areas across the United States and found that elderly people exposed to more hot days showed more rapid biological aging

Surgeons operated on three patients in Canada.

Surgeons Are Conducting Rare ‘Tooth-in-Eye’ Surgeries to Restore Vision to Blind Patients in Canada

The complex procedure involves extracting a patient’s canine tooth, adding a plastic optical lens to it and surgically embedding it in the eye

Transplanting pig organs into people may soon become routine.

The Future of Transplanting Pig Organs in People

After years of research into xenotransplantation, the field is at a turning point—yet risks and ethical issues remain

Stanleya pinnata, or "prince's plume," takes up large amounts of selenium from the soil.

About One Billion People Are Deficient in Selenium. Genetic Engineering Could Change That

Hoping to stave off a global health crisis, scientists are breeding a new generation of crops that suck the mineral, which helps the thyroid and immune system, from soil

Greenland sharks can live to be nearly 400 years old.

Greenland Sharks Can Live for 400 Years. Scientists Are Using DNA to Unravel Their Longevity Secrets

These large, mysterious creatures are the longest-living vertebrates on the planet—and their genomes could contain clues to how they prevent cancer and reach such an advanced age

Migrating sandhill cranes stop to rest and refuel in the Midwest as they make the long journey northward to their breeding grounds.

More Than 1,500 Sandhill Cranes Killed by Bird Flu in Indiana, Raising Concerns Among Biologists

The tall, slender grey birds are making their annual spring migration to northern breeding grounds. Experts say the virus could become a larger problem if it gets passed to endangered whooping cranes

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

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