"Our study provides a new direction to understand the whole evolutionary history of massive stars toward the formation of black hole binaries."

Massive supernova explosion may have created a binary black hole

"If they were purely made up of stars, they would be the densest galaxies in the universe."

James Webb Space Telescope's mysterious 'little red dots' may be black holes in disguise

Four astronauts are set to depart the International Space Station Wednesday amid a health concern. The unprecedented early departure will leave behind a skeleton crew.

4 astronauts depart ISS, leaving behind just 3 crewmates to staff the orbiting lab

SpaceX's Crew-11 astronauts will leave the International Space Station today (Jan. 14) in the first-ever medical evacuation from the orbiting lab, and you can watch it live.

Crew-11 astronauts undock in 1st-ever medical evacuation from the International Space Station (video)

Organ donations from the recently deceased dropped last year for the first time in over a decade, resulting in fewer kidney transplants, according to an analysis issued Wednesday that pointed to signs of public mistrust in the lifesaving system.  More than 100,000 people in the U.S. are on the list for an organ transplant.  The nonprofit Kidney Transplant Collaborative analyzed federal data and found 116 fewer kidney transplants were performed last year than in 2024.

Public mistrust linked to drop in deceased donor organ donations and kidney transplants

Last year, measles cases in the U.S. reached a 33-year high.

At least 171 measles cases confirmed in 9 states, CDC data shows

A majority of counties across the U.S. are seeing a steady rise in vaccine exemptions for religious or personal beliefs among children entering kindergarten, a new study shows

Vaccine exemptions for religious or personal beliefs are rising across the U.S.

Whole milk is heading back to school lunch cafeterias.

Trump signs bill allowing whole milk to return to school lunches

Spring & Mulberry recalled one lot of Mint Leaf Date Sweetened Chocolate Bars.

What to know about voluntary chocolate recall

Whole milk is heading back to school cafeterias across the country after President Donald Trump signed a bill Wednesday overturning Obama-era limits on higher-fat milk options.  Nondairy drinks such as fortified soy milk may also be on the menu in the coming months following adoption of the Whole Milk for Healthy Kids Act, which cleared Congress in the fall.  The action allows schools participating in the National School Lunch Program to serve whole and 2% fat milk along with the skim and low-fa

Trump signs a law returning whole milk to school lunches

Department of Justice said five Kaiser Permanente affiliates in California and Colorado agreed to ​pay $556 million to resolve claims they illegally pressured doctors to add codes ‌for diagnoses they never considered to patients' medical records, in order to inflate Medicare payments ‌from the government. Wednesday's settlement resolves two whistleblower lawsuits accusing the affiliates of Oakland, California-based Kaiser of violating the federal False Claims Act.

Kaiser Permanente affiliates to pay $556 million to resolve US claims alleging Medicare fraud

An annual health report from UnitedHealth report found Georgia ranked 38th nationally, in part from recreational drug use and high costs.

National health ranking puts Georgia near bottom of list. Here's why

Health officials in South Carolina confirmed 124 new measles cases since Friday, as the outbreak in the northwestern part of the state balloons following the holidays.  There is a second, separate measles outbreak along the Arizona-Utah border, where 418 people have been infected since August.  Last year was the nation’s worst year for measles spread since 1991, according to the Centers for Disease Control and Prevention.

South Carolina confirms 124 new measles cases as outbreak on the Arizona-Utah line grows

The stimulants Ritalin and Adderall have been used to treat attention-deficit/hyperactivity disorder (ADHD) for decades, but research shows they don’t act on the brain’s attention circuitry as had long been assumed. Instead, the medications primarily target the brain’s reward and wakefulness centers, according to a new study published in the journal Cell. The research, which used brain imaging data from almost 5,800 children ages 8 to 11, also pointed toward the important role that lack of sleep

ADHD drugs work, but not the way experts thought

This year's flu season is shaping up to be particularly brutal. Here's what to know this week, including cases taking a downturn.

Is relief in sight? Flu season still brutal but cases are declining.

The CDC is no longer recommending that all adolescents and teens get vaccinated for potentially fatal bacterial meningitis, although the shots are still available for high-risk patients.

As cases of a rare, deadly infection rise, doctors worry fewer teens will get vaccinated

The media superstar, who has struggled with weight for much of her life, and a Yale School of Medicine doctor team up for a book that examines the biology of obesity, offering a new way forward.

Book excerpt: "Enough" by Dr. Ania Jastreboff and Oprah Winfrey

"Your goal might be set in stone, but how you achieve it shouldn't be."

Struggling to keep your New Year's resolutions? Here's how to keep yourself on track

Andy Provencher spent a year searching for the cause of his exhausting symptoms before a physician's assistant suggested a rare illness.

Doctors thought he had cancer. An offhand suggestion led to a rare diagnosis.

When Sarah Baldassaro turned 50, she took stock of her health and began working with a fitness coach on strength training, a type of exercise that's crucial for women in midlife.  “Now I would say I’m stronger overall than I ever have been at any age,” said Baldassaro, 52, of Alexandria, Virginia.  Medical experts say strength training keeps bones and muscles healthy after menopause when estrogen loss speeds up a reduction in bone density and contributes to the gradual loss of muscle mass.

Strength training is crucial after menopause. How to make the most of your workouts

Dr. Molly O’Shea has noticed growing skepticism about vaccines at both of her Michigan pediatric offices and says this week's unprecedented and confusing changes to federal vaccine guidance will only make things worse.  The biggest change was to stop blanket recommendations for protection against six diseases and recommend those vaccines only for at-risk children or through something called “shared clinical decision-making” with a health care provider.  The phrase, experts say, is confusing and

Doctors say changes to US vaccine recommendations are confusing parents and could harm kids

From extreme heat to mosquito-borne illnesses, climate change is making people sicker and more vulnerable to disease. Health scientists explain what individuals and governments can do about it.

Want to make America healthy again? Stop fueling climate change

Weight loss drugs like Ozempic and Wegovy have had a meteoric rise in recent years, but how fast does the weight return after stopping treatment?

Study reveals how fast weight returns after ending GLP-1 drugs

Health Secretary Robert F. Kennedy Jr. says the flu shot isn't effective in protecting children. Here's what experts say.

RFK Jr. says fewer flu shots for kids may be 'better.' What experts say.

Irregularities in how the government developed the updated guidelines raise questions about its conclusions.

I served on the expert committee that advised the government on new dietary guidelines – most of our recommendations were ignored

People who stop taking GLP-1 drugs such as Ozempic and Wegovy for weight loss are projected to regain their shed pounds within about 1½ years, a review of existing research has found. The paper also found that former users of a wider list of weight-loss drugs regain weight four times more quickly than those who had used behavioral techniques like dieting or exercise. For sustained health benefits after coming off the drugs, scientists say, it is necessary to make lasting changes to your diet and

Former GLP-1 users regain lost weight after about 18 months, study says

A handful of crypto-powered health groups have cropped up, aiming to put patients in the driver's seat. Does this “decentralized” approach lead to better outcomes — or riskier medicine?

They want better health care — so they're turning to crypto startups

Some experts say red meat and full-fat dairy can be high in saturated fats.

RFK Jr.'s diet guidelines emphasize red meat, full-fat dairy. How healthy are they?

Jan 8 (Reuters) - Merck on Thursday said any changes to the U.S. child and adolescent immunization schedule should rest on comprehensive data and guidance from vaccine experts, after federal health

Merck urges science-led US vaccine schedule after CDC trims childhood vaccine list

As they age, it’s not uncommon for many people to let out a muted groan when getting out of bed in the morning.  Dr. Miho Tanaka, a sports medicine surgeon at Massachusetts General Hospital and Harvard Medical School, said good mobility is increasingly recognized as an important part of overall health.  Mobility and flexibility are often confused, said Jessica Valant, a physical therapist and Pilates instructor near Denver.

Mobility exercises are an important part of fitness as we age. Here are some tips

Flu is surging across most of the U.S. Amid an early, harsh season, the flu shot may be more effective than predicted against the H3N2 subclade K strain.

How effective is the flu shot this year? New report shows promising results

The guidelines encourage diets focused on whole foods and protein-rich meals.

RFK Jr. releases new dietary guidelines with emphasis on protein, full-fat dairy

Jan 7 - OpenAI on Wednesday launched a ChatGPT Health tab that answers health-related questions and lets users upload medical records and connect wellness apps such as Apple Health and MyFitnessPal.

OpenAI launches ChatGPT Health to connect medical records, wellness apps

The food pyramid has changed. Here's what you need to know.

New dietary guidelines recommend more dairy, meat and fats: What to know

The CDC estimates there have been at least 11 million illnesses so far.

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