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Disease and Illnesses

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

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

Brazil experienced its first urban outbreak of yellow fever in decades from late 2016 through 2018. During that time, people flocked to health centers to get a vaccine, which can provide lifelong protection.

Brazil’s First Urban Yellow Fever Outbreak in Nearly a Century May Have Been Fueled by a Surprising Culprit

Extremely wet conditions are known to help spread mosquito-borne diseases like yellow fever. But based on computer simulations, researchers suspect that a severe drought may have contributed to the South American country’s recent deadly epidemic

 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

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

The drug targets the tau protein, which accumulates and forms tangles (seen in blue) in nerve cells.

Experimental Alzheimer’s Drug That Fights a Tough-to-Target Protein Shows Promise at Slowing Cognitive Decline in a Clinical Trial

Recently FDA-approved treatments work to clear clumps of the protein amyloid beta in the brain. A drug that instead goes after tangles of the protein tau can yield similar cognitive outcomes, a new study suggests

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

At left, Tatiana, Anastasia and Olga Romanov pose for a photo with their father, Nicholas II, and two members of their retinue. At right, Anastasia kneels at the bottom of a human pyramid topped by the czar.

Thousands of Intimate Photographs Reveal the Everyday Lives of the Romanovs, Russia’s Last Imperial Family

The Bolsheviks executed the last czar, Nicholas II, and the rest of his family, including his famous daughter Anastasia, 108 years ago. Surviving snapshots open a portal into the royals’ private world

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

Francesco I de' Medici, left, died suddenly in 1587. His brother Ferdinando I, right, succeeded him as grand duke of Tuscany.

Did This Duke Poison His Brother? A New DNA Analysis May Solve the Centuries-Old Medici Mystery

Researchers found evidence of malaria in Francesco I de’ Medici’s bones, leading them to argue “with scientific certainty” that it was disease, not arsenic, that led to his death in 1587

The researchers say the early strains of plague they identified were highly lethal.

New Research

New Discovery That Hunter-Gatherer Children Died of Plague More Than Five Millennia Ago Sets Back the Date of the Earliest Outbreak

The skeletons of nomadic families unearthed in Siberia harbor “Yersinia pestis” bacteria, which challenges theories about conditions needed for the disease to spread

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 rendering of Oscar Tuazon’s Eternal Flame for Scott Burton 

With a Beam of Light, the New York City AIDS Memorial Honors the Nearly Forgotten Legacy of This Great American Sculptor

A new sculpture draws on materials and ideas from Scott Burton’s artwork, which offered comfort in urban spaces. His final public series was a set of benches and lights on piers in Brooklyn

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

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