Disease

Fat tissue, as seen here under a scanning electron micrograph, maintains a "memory" of obesity, new research suggests.

Fat Cells Retain a 'Memory' of Obesity, Making It Hard to Lose Weight and Keep It Off, Study Suggests

Obesity leads to DNA alterations that affect gene activity and linger after weight loss, a finding that researchers say could help reduce stigma around the disease

Sierra Nevada yellow-legged frogs are rebounding from near-extinction in California.

Endangered Sierra Nevada Yellow-Legged Frogs Are Making a Comeback

Scientists are celebrating the recovery of the species in Yosemite National Park, where they were decimated by the introduction of non-native fish and the deadly amphibian chytrid fungus

Sugar exposure during the first 1,000 days after conception is linked with type 2 diabetes and hypertension later in life, according to a new study.

How Sugar Rationing During World War II Fended Off Diabetes and High Blood Pressure Later in Life

Babies who were conceived and born during the period of rationing in the United Kingdom were less likely to develop certain diseases as adults, a new study finds

Scurvy, or vitamin C deficiency, is easy to treat with supplements and dietary changes.

Is Scurvy Making a Comeback? Two Recent Cases Highlight How the Illness Can Appear in the Modern World

Scurvy diagnoses in Australia and Canada suggest doctors should consider testing for vitamin C deficiency in patients experiencing poverty, food insecurity and social isolation

View from the researchers' airplane flying over Japan

Scientists Have Found Bacteria and Fungi 10,000 Feet Up in the Air

The discovery has implications for human health, since the microbes included some that were still viable, some that could be infectious to humans and others that carried drug-resistant genes

One eagle fights another for a midshipman fish in a behavior called kleptoparasitism.

'Pirate Seabirds' Could Become a Pathway for Deadly Avian Flu to Spread to Australia, Study Finds

Kleptoparasitism, in which a bird harasses another to steal its food, might introduce avian flu to the continent, currently the only one without the severe H5N1 strain

Health officials say there is an elevated risk for Eastern equine encephalitis infections in New England this year. Wearing insect repellant, covering skin outdoors and staying indoors between dusk and dawn can help prevent infection.

New Hampshire Resident Dies From Rare but Serious Mosquito-Borne Illness

It's one of four cases of Eastern equine encephalitis reported in the U.S. so far this year—and the state's first since 2014

The new research tested the drug liraglutide, marketed as the diabetes treatment Victoza. Liraglutide and the active substance used in the weight-loss treatment Wegovy are both GLP-1 agonists, used to lower the risk for heart disease, stroke and kidney disease.

Weight Loss and Diabetes Drug Could Slow Alzheimer's Progression, Preliminary Study Suggests

In a year-long trial, people who received a daily injection of liraglutide showed an 18 percent lower cognitive decline than people who received a placebo

A colorized transmission electron micrograph of monkeypox virus particles. There have been 15,600 mpox cases and 537 deaths reported in the Democratic Republic of the Congo in 2024 so far.

WHO Declares Mpox Global Health Emergency. Here's What to Know

A new virus strain has been spreading primarily the Democratic Republic of the Congo, as well as nearby countries that had previously not reported mpox cases

Vultures clean up carcasses quickly, preventing bacteria and pathogens from proliferating. 

When Vultures Nearly Disappeared in India, Half a Million People Died, Too, Study Finds

By being nature's clean-up crew, the often maligned birds help prevent the spread of diseases, according to a new study

Brahe's mansion, Uraniborg, was located on an island in Sweden. His basement laboratory is represented by the bottom left room in this drawing.

Was This Renaissance Alchemist Ahead of His Time?

New research suggests that Tycho Brahe isolated tungsten nearly 200 years before the metal was identified as an element

A jar containing Ascaris, a parasitic worm that affects over one billion people worldwide

Parasites Are Everywhere. Why Do So Few Researchers Study Them?

Aging parasitologists are working hard to inspire more students to enter the field

The new adaptation of The Decameron is “like a medieval ‘Love Island,’ and it descends into Lord of the Flies chaos,” says actor Tanya Reynolds.

The Real Story Behind Netflix's 'The Decameron'

Loosely based on Giovanni Boccaccio's 14th-century collection of short stories, the series follows a group of Italian nobles and servants who flee to the countryside to escape the Black Death

A team of Italian and Egyptian archaeologists discovered the tombs along the west bank of the Nile.

Trove of Tombs Sheds Light on How Ancient Egyptian Families Lived—and Died

The finds include mummies from many social classes, some of whom were buried alongside relatives after succumbing to disease

Tusks and other fossilized remains are all that's left of the woolly mammoths that lived on Wrangel Island thousands of years ago.

What Killed the Last Woolly Mammoths? Scientists Say It Wasn't Inbreeding

New research suggests some catastrophic event—such as a natural disaster or a virus—killed the world's last known population of mammoths on Wrangel Island

The new blood test, researchers hope, will help doctors diagnose Parkinson's disease years before symptoms occur, helping them provide more proactive treatments.

New Blood Test for Predicting Parkinson's Disease With A.I. Shows Promise, Study Suggests

In preliminary research, scientists identified eight protein anomalies in the blood of patients with Parkinson's, which they say can help diagnose the disease up to seven years before symptoms appear

The frog saunas are easy to make and cost around $50 to put together.

'Frog Saunas' May Be the Key to Saving Amphibians From a Deadly Fungal Infection

Providing frogs with sun-warmed bricks inside mini-greenhouses can help them recover from chytrid and make them more resilient against the disease in the future, a new study finds

The cemetery is located near a Spanish colonial church built in Huanchaco, Peru, around 1535.

16th-Century Skeletons of Children Infected With Smallpox Discovered in Peru

The toddlers' remains were buried around the beginning of the Spanish conquest of South America

A new study sheds light on the timeline of the human immune response when confronted with SARS-CoV-2 and other infectious diseases.

Why Are Some People Seemingly Immune to Covid-19? Scientists May Now Have an Answer

Researchers tracked the immune responses of 16 people intentionally exposed to SARS-CoV-2 and pinpointed a gene that seems to help resist the virus before it can take hold

A female Anopheles mosquito, the type that transmits malaria.

Ancient DNA Illuminates the History of Malaria, One of the World's Deadliest Diseases

Researchers extracted parasitic DNA from preserved teeth and bones, revealing how malaria spread across the globe in a new study

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