For the first time in more than three decades, the United States did not take part in World AIDS Day on December 1, a major change from past years when the day was used to raise awareness about HIV/AIDS and honor the millions of people lost to the disease.

World AIDS Day has been observed globally since 1988. Around the world, 39.9 million... Full Page

A severe mosquito-borne virus outbreak in Cuba has led to dozens of deaths since midsummer, including many young children, health officials there have reported.

Cuba’s deputy health minister, Carilda Peña, said on state TV that 33 people have died from chikungunya and dengue since July. Twenty-one of the deaths were in childre... Full Page

A routine shingles shot may do more than prevent a painful rash. It could also support long-term brain health, new research shows.

In a study published Dec. 2 in the journal Cell, Stanford University researchers found that adults who received the shingles vaccine were less likely to develop early memory and thinking problems.

The White House released new medical information about President Donald Trump on Monday, saying recent imaging tests showed he is in “excellent overall health.”

But some medical experts say the notice raised more questions than answers.

In a short memo, Dr. Sean Barbabella, the president’s physician, said the tests... Full Page

Cosmetic fillers are meant to enhance a person’s beauty, but can cause damage and deformity if applied incorrectly.

However, ultrasound scans can help doctors prevent these ugly side effects by precisely guiding treatment to dissolve poorly placed fillers that are blocking blood vessels, according to findings presented Wednesday at t... Full Page

A bad psychedelic trip might have long-term consequences for a person’s mood, researchers say.

Folks who land in the hospital due to hallucinogens are six times more likely to be diagnosed with mania within a few years, according to results published Dec. 2 in the journal PLOS Medicine.

“Our study showed a strong... Full Page

Sports injuries among female athletes can be reduced by creating a safe, supportive environment for training and competition, an International Olympic Committee (IOC) panel has concluded.

Among many other physical safety recommendations, an environment free of body shaming, idealized body types and notions of how women “should”... Full Page

Women with an eating disorder are more likely to have children who suffer from asthma and wheezing, a new study says.

Eating disorders are associated with a 26% increased risk of school-age asthma and a 25% higher risk of preschool wheeze, researchers reported Dec. 2 in the journal Thorax.

This increased risk persisted even ... Full Page

A painkiller alternative to opioids could be tricking doctors into misdiagnosing heart failure, a new study warns.

Drugs like gabapentin and pregabalin are frequently prescribed to treat nerve pain, researchers said.

But a side effect of these drugs is fluid retention, causing a person’s legs and feet to swell.

Unfortunat... Full Page

Hemorrhoids are a common condition that affects about half of all people by age fifty.

Although hemorrhoids are usually harmless, some worry that they may be a sign of cancer. While certain symptoms of hemorrhoids, colorectal cancer, and anal cancer do overlap, it’s important to know how they are... Full Page

A small but closely watched study is giving researchers new optimism in the search for long-term HIV control, and possibly a cure.

For the University of California, San Francisco (UCSF) study, 10 people living with HIV took a mix of experimental immunotherapies, including an HIV vaccine. After months of the immunotherapy treatments, partic... Full Page

A confidential internal memo from the U.S. Food and Drug Administration (FDA) is creating new controversy around vaccine safety after an agency official said the COVID-19 vaccine may have played a role in the deaths of at least 10 children.

The memo, which was obtained by The New York Times, has not been released publicly or revie... Full Page

The United Kingdom is expanding its battle against high sugar consumption by including more drink products in its national sugar tax.

The U.K. Department of Health and Social Care announced the tax will be expanded to sweetened milk-based beverages, including pre-packaged flavored milks and milkshakes, milk-alternative drinks (such as coco... Full Page

The World Health Organization (WHO) released its first-ever guideline on using GLP-1 medications to treat obesity.

The disease now affects more than 1 billion people worldwide and is tied to 3.7 million deaths in 2024.

The new recommendations reflect a major change in how obesity is viewed and treated.

The WHO classifies obes... Full Page

As many as 1 in 4 breast cancers occur in women younger than 50, a new study has found.

Among seven outpatient clinics in the New York region, 20% to 24% of breast cancers were found in women 18 to 49, according to results presented Monday at the Radiological Society of North America’s annual meeting in Chicago.

“This res... Full Page

Obesity might contribute to faster progression of Alzheimer’s disease, a new study says.

Some blood markers associated with Alzheimer’s increased nearly twice as fast among people with obesity compared to people who didn't have obesity, according to results presented today at the Radiological Society of North America’s an... Full Page

That beer belly a guy’s toting around could mean trouble for his heart, a new study says.

Said belly fat is linked to changes in heart structure that can contribute to heart failure, researchers reported Monday at the Radiological Society of North America’s annual meeting in Chicago.

“Abdominal obesity, a high waist... Full Page

Folks who overlook a concussion might find themselves at greater risk for Alzheimer’s disease down the line, a new study says.

Receiving prompt treatment within one week of a serious head injury can reduce the later risk of Alzheimer’s by up to 41%, researchers recently reported in the Journal of Alzheimer’s DiseaseFull Page