Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Medicine

Since calorie restriction is known to slow aging, researchers wanted to know if GLP-1s—which curb appetite—could do the same.

GLP-1 Weight-Loss Drugs Can Slow Aging and Extend Life Span, Mouse Study Suggests

Older female mice—equivalent in age to 60-year-old women—given daily injections of the active ingredient in Ozempic lived about 12 percent longer than animals that didn’t receive the drug

The ration kept an individual's daily intake of sugar at around 40 grams, about ten cubes of sugar. After the restriction ended, consumption of the sweetener nearly doubled.

World War II Sugar Rationing Data Hints That Limiting Intake of the Sweet Stuff Early in Life Lowers the Risk of Dementia and Cancer

For roughly a decade leading up to September 1953, the United Kingdom limited sugar purchases. Scientists studied health outcomes in people born during the ration and right after

A sample of cerebrospinal fluid is processed at the University of California, San Francisco, long Covid research lab.

For Many Americans, Covid Is Still a Chronic, Disabling Disease. These Scientists Are Working Tirelessly to Bring Them Relief

Long Covid saps the strength and vitality of patients, who have little recourse to fight it. A team of specialists—including an afflicted researcher working mostly from her bed—is looking for answers

CTE is believed to be caused by repeated head injuries.

At Least One in Four Former NFL Players Who Died Between 2016 and 2021 Had the Progressive Brain Disease CTE, Study Suggests

The true prevalence of the neurodegenerative disease—which is associated with repeated head injuries—among the deceased football players might be much higher. CTE affects other athletes too, including hockey players, soccer players and wrestlers

Tennis courts where the author played at Outbound Sedona in the Arizona heat

Tennis Matches Are Heating Up, Literally. Here’s How the Court Became a Living Laboratory for Managing Extreme Temperatures

The sport’s hard-court surfaces can reach some 30 degrees hotter than the surrounding air. With elite players suffering heat illness on the world stage, athletes are following personalized cooling plans

An American bullfrog, which is the largest frog species in North America

This Deadly Shellfish Poisoning Has No Antidote. A Protein Found in American Bullfrogs Could Change That

A study in mice found that a protein called saxiphilin acts like a sponge against a deadly toxin produced by algal blooms. The harmful agent, which accumulates in certain seafood, can cause a life-threatening illness called paralytic shellfish poisoning

Scientists used Evo, an AI tool that can suggest genome designs, to design new viruses. 

Scientists Used A.I. to Design New Viruses. The Technology Could Be a Boon for Medicine, but Experts Worry About Harmful Pathogens

The findings represent the first genomes, or complete genetic instruction books, designed entirely with generative A.I. The resulting viruses attack only bacteria, which could one day help overcome the problem of antibiotic-resistant microbes

The trial only included people with melanoma, but experts say the same treatment approach could potentially be applied more broadly—to other types of cancer, as well as rare conditions caused by genetic mutations.

A New Personalized Cancer Vaccine Could Keep Skin Cancer From Coming Back, Drugmakers Say

The results, announced this week by Moderna and Merck, could pave the way for a new generation of treatments tailored to individual tumors

Scientists have discovered more than 4,400 ancient preserved human brains, some of which are 12,000 years old.

Archaeologists Have Found Thousands of Intact Ancient Human Brains. Scientists Say They’ve Figured Out Why the Organs Don’t Always Rot

Under the right conditions—wet and oxygen-deprived—the same chemical reactions that cause tissue to break down can instead have the opposite effect, according to a new study

Participating in a sleep study, or a polysomnography, can help doctors diagnose a patient with narcolepsy.

This Newly Approved Narcolepsy Drug Is the First to Target the Sleep Disorder’s Root Cause Rather Than Its Symptoms

The Food and Drug Administration just greenlit a medication called Orzeyful for the treatment of narcolepsy type 1 in adults. The condition is caused by the loss of brain cells that produce orexin, a chemical important for regulating the sleep-wake cycle

Past studies have suggested that what’s good for the heart may also help protect the brain. But researchers hoped to frame that connection in a different way—not just as reduced risk, but as time gained without dementia.

Avoiding These Three Vascular Health Risk Factors in Midlife Can Help You Delay Dementia for About 13 Years, Study Suggests

High blood pressure, diabetes and smoking are three major modifiable risk factors of dementia. New research tracked more than 12,000 participants to quantify how many years of healthy cognitive function you can gain by evading some or all of them during middle age

 SARS-CoV-2, the virus that causes Covid-19, under the microscope

Covid-19 Can Reawaken Dormant Viruses in the Body, Which Might Worsen Symptoms of the Respiratory Illness, Study Suggests

Most people carry a sleeping virus in their bodies, such as the herpesvirus that causes mononucleosis, or the “kissing disease.” A new study hints that Covid-19 triggers their reactivation, which could worsen symptoms and increase the risk of long Covid

Way Bandy touches up Crystal Gayle's makeup on location for "The Crystal Gayle Special," September 1, 1979.

Way Bandy Was One of the Most Influential Makeup Artists in the World. He Challenged Stigmas in the 1980s by Making Sure His Death From AIDS Was Widely Known

He instructed the executors of his will to make his specific cause of death from the disease public during a time when many others feared doing so

Older adults are especially at risk of flu-related complications.

For the First Time, an mRNA Flu Shot Will Be Available to Some People in the United States. Here’s What You Should Know

The Food and Drug Administration just approved the new type of flu vaccine for adults ages 50 and older. It relies on the same technology as many Covid-19 jabs. However, it’s unclear whether insurance companies will pay for the novel flu shot

The mushroom Psilocybe pelliculosa is one of several species that produce psilocybin, a natural compound with hallucinogenic properties.

Could Psilocybin Help Treat Anorexia? A Small Clinical Trial Suggests the Psychedelic May Make Patients More Open to Recovery

The drug, paired with intensive psychological support, may loosen the rigid patterns of thought associated with the eating disorder, scientists say—but they caution that it is not a magic cure

One source of the cyclosporiasis outbreak is Taylor Farms iceberg lettuce grown in central Mexico.

Two People Died After Getting Sick With Cyclosporiasis, Marking the First Known Deaths Linked to the Ongoing Multistate Outbreak

Both patients, who were in Michigan, had underlying health conditions, according to state officials. The parasite-caused infection usually isn’t life-threatening

The experimental therapies are part of a larger movement toward personalized medicine.

After Receiving a Custom Experimental Medicine, a Teen With a Rare Genetic Disorder Walked on His Own for the First Time

The patient’s genetic disorder causes frequent seizures and developmental delays. His progress, along with that of another boy who received a similar personalized treatment, highlights the promise—and challenges—of tailor-made drugs

Of the estimated 899 species of ticks worldwide, about 90 are found in the continental U.S.; however, only four species are responsible for most of the infections found in the U.S. today.

The First At-Home Test for Infected Ticks Could Improve Lyme Disease Diagnosis

LymeAlert will hit the market in August. The latest tool against the tick-borne illness could become a medicine cabinet staple

Traffic can be bad for your health in many ways. Now, researchers have found that it might also increase the risk of Parkinson's disease.

Long-Term Exposure to Road Traffic Noise Might Increase Your Risk of Developing Parkinson’s Disease, New Research Suggests

A study that examined 3.1 million adults in Denmark across 18 years found a modest but consistent correlation. The findings hint that disruptive environmental sounds are a credible risk factor for the brain disorder

Among medical fields, radiology has pioneered the adoption of A.I. tools. Yet combining the complementary strengths of human and machine intelligence is not straightforward.

How A.I. Will Reshape Radiology—Without Replacing Radiologists

Human experience and flexibility are still necessary even as digital diagnostic tools improve

Page 1 of 65