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Medicine

Keith Thomas is now able to grasp, lift and drink from a cup on his own. 

A Man With Paralysis Has Regained Feeling and Movement in His Hands After an Experimental Brain Implant

After months of training, the patient can now move his arms and hands and feel the sensation of touch

Koala conservation is a complex balancing act in Australia. In some regions, populations are in steep decline, but in others, the animals are overabundant.

Koalas Are at Risk of Extinction in Some Parts of Australia. Can Freezing Their Sperm and Eggs Help Save the Iconic Marsupials?

Scientists are preserving the animals’ reproductive cells in liquid nitrogen in a bid to boost genetic diversity in future populations

Aging populations are a major driver of the predicted increase in cancer incidents.

Cancer Cases Are Expected to Nearly Double by 2050, Warns the WHO. Low-Income Countries Will Be Disproportionately Affected

In a new report, the World Health Organization predicts that new annual diagnoses will rise from about 20.6 million today to almost 35 million by 2050. The biggest increases will be in Africa and the Eastern Mediterranean region

Public health experts recommend vigorously washing all produce, among other measures.

Cases of a Parasitic Infection That Can Cause Diarrhea for Weeks Are Rapidly Rising in the U.S. Here’s What to Know

The illness is caused by the microscopic parasite Cyclospora cayetanensis, which spreads via food or water contaminated with feces, usually on farms. Health officials are still investigating the source of the multistate outbreak

Cells suspended in a water-based gel make up the “ink” in this 3D printer.

Can Printed ‘Skin’ Heal Burns and Prevent Scars?

Inks created with a patient’s own cells may one day help the body regrow tissues

A Heliconius melpomene butterfly feeding on pollen.

These Butterflies Can Live 25 Times Longer Than Their Relatives. They Might Provide Insights Into Healthy Aging in Humans

Their unusual diet of pollen—rather than nectar—might partially explain why members of the Heliconius genus live so long, up to nearly a year

Slow-healing wounds, especially in diabetics and burn victims, can become infected with antibiotic-resistant bacteria. Light-activated nanomaterials offer a potential new way to clear the infection and accelerate wound healing.

Scientists Are Using Nanomaterials to Heal Stubborn Wounds That Resist Antibiotic Treatment

Light-activated therapies may offer a solution to slow-healing lesions common in diabetics and burn victims

About two-thirds of patients ages 40 and older with a common form of breast cancer might be able to forego chemotherapy—usually delivered intravenously—as part of their treatment plans.

This ‘Practice-Changing’ Gene Test Could Tell Doctors Which Patients With Breast Cancer Can Skip Chemo, Clinical Trial Suggests

Chemotherapy comes with debilitating side effects, including brain fog, nausea and nerve damage. New research suggests that many people with a common type of breast cancer need just radiation and hormone therapy to prevent recurrence

A team of researchers put out information about a fake disease, and A.I.-powered chatbots fell for it.

Scientists Invented a Disease to Test Whether A.I. Knew It Was Fake. Then, Chatbots Started Saying It Was Real

The eye condition bixonimania doesn’t exist, but neither bots nor some researchers caught that the content was fabricated—despite obvious clues

The “Ether Dome” at Massachusetts General Hospital is now a National Historic Landmark.

America at 250: The Revolutionary Spark

The Operating Room Where Anesthesia Was First Demonstrated Is Now a Landmark. But for the Men Who Claimed Credit, There Was Much Misery

Medical procedures used to be a scream-filled endurance test until doctors at this Boston institution learned to tame the pain of patients

New World screwworm is the name given to the larval, or maggot, stage of the Cochliomyia hominivorax blowfly

Flesh-Eating Screwworms Have Been Detected in the United States 60 Years After They Were Eradicated From the Country

The parasites were identified in a bovine in southern Texas. This marks the third time the cattle-threatening pests have been found in the U.S. and the first in Texas since they were eradicated in 1966

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America at 250: The Revolutionary Spark

This Playful Interactive Reveals the Medical Advances That Have Made Life Better … and Sometimes Longer

From replacing lost limbs to helping a heart find its rhythm, the work of American doctors and researchers has improved lives in incalculable ways

The exhibition includes 14 original mural panels and two recreations.

See the Rescued and Restored ‘Alice in Wonderland’ Mural Painted for Sick Children at a New York Hospital

Abram Champanier’s “Alice of Wonderland Visiting New York” was a commission from the Federal Art Project, a New Deal program that championed American art in public spaces

A photo illustration of Jonas Salk.

America at 250: The Revolutionary Spark

When the Fear of Polio Gripped the World, Jonas Salk’s Determination Led to a Liberating Medical Breakthrough

The son of the doctor, himself now a physician and researcher, recalls his vaccination in the kitchen as painless. Now, he recounts the impact of the work his father led

Two members of the Médecins Sans Frontières Ebola response team outside a hospital in the Democratic Republic of Congo

These Experimental Ebola Treatments and Vaccines Might Help Slow the Outbreak Spreading in Congo and Uganda, WHO Says

No approved therapeutics exist for the virus species causing the outbreak, which has been associated with more than 1,000 cases of Ebola. The World Health Organization has identified several therapeutics to test in clinical trials in the coming months

The true story of the gin and tonic is less about a singular invention and more about the convergence of science, medicine, commerce and empire over several centuries.

The Gin and Tonic Is a Cocktail With a Storied History. Don’t Overlook Scotland’s Connection to the Classic

The country’s scientists, doctors, merchants and distillers all played significant roles in transforming the simple combination that packs a complicated mythology

The instruments and close-ups of their residues

New Research

These 600-Year-Old Chinese Surgical Instruments Are Coated in an Early Local Anesthetic—Carefully Extracted From a Poisonous Plant

Researchers say the numbing agent splashed onto iron scissors and tweezers during a procedure. They were found in a Ming dynasty doctor’s tomb

The drug ensitrelvir, under the brand name Xocova, was recently approved in Japan as a post-exposure protection against Covid-19.

This Pill Can Prevent You From Getting Covid-19 After Exposure to the Disease-Causing Virus, According to a Clinical Trial

The drug showed promising results in an international study involving nearly 2,400 participants, and the U.S. Food and Drug Administration is expected to make an approval decision for it in June

The researchers say this is one of the first studies looking at the effects of cold exposure over a prolonged period of time in people who are overweight or have obesity.

Regularly Wearing a Cooling Vest Might Help You Lose Body Fat, According to a New Study

Participants who were overweight or living with obesity wore the accessories for two hours every morning for six weeks and lost an average of two pounds. The researchers suspect showering or swimming in frigid water could have similar effects

Researchers tracked children's reactions to particular food exposure when they were fetuses, newborns and then 3-year-olds.

Want to Avoid Having a Picky Eater? Start Exposing Your Kids to Veggies Super Early—in the Womb

In a new study, 3-year-olds who were repeatedly exposed to the taste of bitter kale as fetuses appeared to be less averse to the leafy greens’ scent than they were to a food smell they hadn’t experienced in utero

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