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Why Some Families Seem to Have Only Boys or Girls
Why Some Families Seem
to Have Only Boys or Girls
NEW STUDY
Jul 26, 2025 7:30 AM CDT

Why Some Families Seem to Have Only Boys or Girls

Research finds that family patterns involving siblings influence the odds

(Newser) - A Harvard University study is challenging the long-held assumption that the odds of having a baby boy or girl are a simple coin toss. Drawing on records from more than 58,000 women in the Nurses' Health Study, researchers uncovered a pattern, per NPR : In families with at least...

7K Steps a Day May Be All You Need
Can't Get
10K Steps In?
Keep Walking
Anyway
NEW STUDY
Jul 25, 2025 6:19 AM CDT

Can't Get 10K Steps In? Keep Walking Anyway

Research suggests 7K steps may be all you need for reduced disease, depression risks

(Newser) - A new study suggests that hitting 7,000 steps daily could be enough to lower risks for a range of serious diseases, challenging the long-touted 10,000-step benchmark. The research published in the Lancet Public Health journal , which pooled data from more than 160,000 adults worldwide, linked this...

Grand Canyon Gives Up New Species From 'Goldilocks Zone'

Site was an evolutionary hotbed 500M years ago, per fossil research on recently found penis worm

(Newser) - A previously unknown species of penis worm navigated what's now the Grand Canyon half a billion years ago—making up part of a fascinating, first-of-its-kind discovery at the iconic US site. By dissolving fist-size rocks discovered along the Colorado River within the canyon, researchers led by the University of...

How Much You Move a Better Predictor of Longevity Than Age
For Those Seeking
a Longer Life,
Get a Move on It
NEW STUDY
Jul 19, 2025 5:25 PM CDT

For Those Seeking a Longer Life, Get a Move on It

Wrist trackers show that daily activity beats out metrics like how old you are in predicting longevity

(Newser) - A new study suggests that the best indicator of how long you'll live isn't buried in a complex list of medical tests or hidden among the hundreds of biomarkers that longevity-obsessed tech millionaires track. Instead, it comes down to a much simpler metric: how much you move...

Science Finds People Want to Date Their Pets (Kind of)

New study reveals nearly a third of pet owners would go out with the AI version of their cats, dogs

(Newser) - Man's best friend = man's artificial-intelligence-created lover? That's the gist of a new study that shows a significant number of pet owners wouldn't mind dating their pets if an AI version of them could be created, reports the New York Post . According to the MetLife survey...

Research Clashes With Claim by Kennedy About Vaccines

Study of 1.2M people sees no link between aluminum in doses and disorders including autism

(Newser) - A major new study has investigated the claim by Health Secretary Robert F. Kennedy Jr. and others that vaccines administered to protect children from infectious diseases are dangerous—and found no evidence of it. Vaccine critics often cite aluminum salts, a product added to many childhood vaccines to increase their...

Everyday CBD Use Brings Risk to Liver
Everyday CBD Use
Brings Risk to Liver
NEW STUDY
Jul 8, 2025 6:21 AM CDT

Everyday CBD Use Brings Risk to Liver

Study finds 5% had elevated liver enzymes after use

(Newser) - As cannabidiol (CBD) products become a fixture in American homes, a new FDA study has found that even low doses may quietly harm the liver in some users. Researchers conducted a placebo-controlled study with 201 healthy adults, giving some participants a common consumer dose of CBD for four weeks....

The Six Traits That Make a Person Cool

A new study shows there's a difference between being a good person and being cool

(Newser) - Turns out cool people around the world have a lot in common, but it all may not be as great as it seems. The New York Times reports that a new study found that, regardless of age, gender, income, or location, nearly 6,000 participants from 12 countries generally agree...

These Critters Outlasted Dino-Killing Asteroid, Still Thrive

DNA study reveals ancient origins, resilience of the night lizard

(Newser) - A new study sheds light on some unlikely survivors of the asteroid impact that wiped out most dinosaurs 66 million years ago: night lizards. According to research published Wednesday in Biology Letters , these small reptiles—found today in parts of North and Central America—managed to persist despite living...

Why Hatshepsut's Statues Were Really Smashed in Ancient Egypt

New study points to ritual practice, not revenge or sexism, in destruction of female pharaoh's statues

(Newser) - A long-standing theory about the fate of Queen Hatshepsut's statues has been upended by a new study. For decades, Egyptologists believed that Thutmose III, Hatshepsut's nephew and successor, ordered the destruction of her statues in an act of personal revenge after she died to erase all signs...

Why Cats Prefer a Left-Side Snooze
Why Cats Prefer
a Left-Side Snooze
NEW STUDY
Jun 28, 2025 5:30 AM CDT

Why Cats Prefer a Left-Side Snooze

Study links position to faster threat response

(Newser) - Ever wondered why your cat curls up on its left side? New research suggests this sleepy preference could be a clever survival tactic honed by evolution—giving felines a quick edge the moment they wake. An international team analyzed more than 400 YouTube videos and found that two-thirds of...

These Canadian Rocks May Be Earth's Oldest
These Rocks in Canada
May Be Earth's Oldest
new study
Jun 27, 2025 10:11 AM CDT

These Rocks in Canada May Be Earth's Oldest

Study puts them at 4.1B years old

(Newser) - Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks—plains of streaked gray stone on the eastern shore of Hudson Bay in Quebec—but researchers have disagreed on exactly how...

Child Had a 5% Chance of Living. This Device Saved Them

Young patient with leukemia, organ failure recovers after experimental treatment with SCD solution

(Newser) - Doctors at Michigan Medicine have reported a medical first: saving a young child in septic shock and experiencing failure of five organ systems using a new device called the Selective Cytopheretic Device (SCD), made by SeaStar Medical. The case, published in Pediatric Nephrology , involved a child with a prior...

Think Weight-Loss Meds Beat Surgery? Maybe Reconsider

Bariatric surgery still outperforms injections for long-term weight loss, researchers find

(Newser) - A new study suggests that popular weight-loss injections like Wegovy and Mounjaro don't deliver the same dramatic results in everyday use as they do in clinical trials. The drugs, which contain semaglutide and tirzepatide, have been hailed for helping some trial participants lose up to 20% of their...

Finally, Hard Proof That These Dinos Scarfed Down Plants
In the Belly of This
Beast, a Major Find
in case you missed it
Jun 15, 2025 6:56 AM CDT

In the Belly of This Beast, a Major Find

Fossilized plant matter discovered in sauropod's gut confirms the creatures were herbivores

(Newser) - Scientists have long believed that the enormous, long-necked sauropods—like those popularized in films such as Jurassic Park and The Land Before Time—were herbivores. Researchers had some clues based on teeth shape and an unwieldy body that didn't suggest these dinosaurs could chase prey well, but hard...

Don't Fall for This 'Fertility Fallacy'

Low birth rates globally aren't due to lack of desire, per UN report—it's the lack of access, cost

(Newser) - A new United Nations Population Fund (UNFPA) report challenges the usual question about declining birth rates, suggesting the real issue isn't that people don't want more kids—it's that many feel they can't have them. The report, which includes polling from 14 countries, found that...

Ancient Wall in Mongolia's Gobi Desert Did More Than Defend

Researchers find the medieval barrier managed resources, set imperial boundaries

(Newser) - A new study is shedding light on the Gobi Wall, a massive but little-understood medieval barrier that crosses 200 miles of Mongolia's highland deserts. For their research published in the journal Land , archaeologists from the Hebrew University of Jerusalem, the National University of Mongolia, and Yale combined satellite...

Those Ice Baths May Not Be 'a Great Idea'
Those Ice Baths May
Not Be 'a Great Idea'
IN CASE YOU MISSED IT
Jun 8, 2025 6:29 AM CDT

Those Ice Baths May Not Be 'a Great Idea'

Cold plunges in general may hamper muscle recovery after exercise, researchers say

(Newser) - If you've ever been tempted to buy an ice bath or take part in a "polar plunge," you may want to check out this study first—at least if you're into weight training. A dip into frigid waters "looks like it's not a great...

Scientists Report Major HIV Breakthrough
Scientists Report
Major HIV Breakthrough
NEW STUDY
Jun 5, 2025 11:20 AM CDT

Scientists Report Major HIV Breakthrough

Virus can be forced out of hiding by mRNA technology

(Newser) - Researchers say they may have found a way to bring a cure for HIV a step closer by deploying the mRNA technology used in COVID-19 vaccines. The team at the Peter Doherty Institute for Infection and Immunity in Melbourne, Australia, reports they can now force HIV out of hiding...

To Survive Heat Waves, the Clown Fish Shrinks
When It Gets Too Hot,
the World's Nemos Shrink
NEW STUDY
Jun 4, 2025 10:45 AM CDT

When It Gets Too Hot, the World's Nemos Shrink

Becoming smaller when it's hot helps boost survival rates for clown fish

(Newser) - Clown fish are now joining the list of animals altering their bodies and behavior in response to climate change. According to a new study published in Science Advances , scientists in Papua New Guinea observed that clown fish, made most famous by the 2003 animated film Finding Nemo, temporarily shrank...

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