study

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Amid 'Grim Global Outlook,' This Shark Species Thrives

Juvenile bull shark population off Alabama grew fivefold in past 20 years as water temps warmed

(Newser) - The frog hasn't noticed it's slowly boiling to death, and neither do bull sharks off the coast of Alabama, apparently. Or, if they do, they're going out with a bang, multiplying at a rate that has brought the juvenile population's numbers up fivefold over the past...

The Globe's Leading Ailments Are in Our Heads
The Globe's Leading
Illnesses Are in Our Heads
NEW STUDY

The Globe's Leading Illnesses Are in Our Heads

Neurological conditions like stroke, dementia affect 43% of global population, per new research

(Newser) - The leading cause of all ill health and disability around the globe isn't cancer or heart disease—it's a wide umbrella of neurological conditions, ranging from migraines to strokes, dementia, or Parkinson's, among other maladies. Per a new study published Thursday in the Lancet , scientists found that...

Blood Test for This Cancer Shows Promise for Early Detection

Guardant Health's Shield test picked up 83% of cancer cases, offering hope for simpler screenings

(Newser) - A new, simpler way to screen for colon cancer could soon become the routine. Guardant Health has produced a blood test that could be administered at a regular doctor's visit to detect the third most-diagnosed cancer in adults in the US—and in a new study, the Shield test...

'Diet Weed' Is Teens' Latest Kick
Teens Have a New Marijuana
Workaround: 'Diet Weed'
NEW STUDY

Teens Have a New Marijuana Workaround: 'Diet Weed'

Researchers say 'appreciable' number of high school seniors are using delta-8, a cannabis compound

(Newser) - In some states, pot hasn't yet been legalized, and even in states where it has been, you have to be 21 to legally consume it. But teens across the US have found a workaround of sorts—a less-potent, more readily available form of THC, or tetrahydrocannabinol, the psychoactive compound...

Crime Scene Investigator Preps for Murder Probes in Space
Future Space Criminals
Will Face 'Astroforensics'
NEW STUDY

Future Space Criminals Will Face 'Astroforensics'

Crime scene investigator Zack Kowalske has been testing blood spatters in zero gravity

(Newser) - The emerging field of astroforensics will be called upon whenever humanity faces its first murder in space. Until that time, Zack Kowalske, a crime scene investigator in Atlanta, says "broadening the understanding of all forensic sciences in nonterrestrial environments is critical as we expand into a space-faring species."...

Got Milk? This Amphibian Does
Got Milk? This
Amphibian Does
NEW STUDY

Got Milk? This Amphibian Does

Scientists say wormlike caecilians offer this surprising sustenance to their young, like mammals

(Newser) - Researchers already knew that baby ringed caecilians, a wormlike amphibian that lives burrowed underneath the earth, gain some of their nutrition by feeding on the skin of their own mother once or twice a week. But when a team out of Brazil studying the creature (also known as Siphonops annulatus)...

ADHD May Have Been Evolutionary Advantage
ADHD May Have Been
Evolutionary Advantage
NEW STUDY

ADHD May Have Been Evolutionary Advantage

Study involving online berry-picking suggests ADHD is 'adaptive specialization for foraging'

(Newser) - Traits associated with attention-deficit/hyperactivity disorder (ADHD) can include difficulty concentrating, hyperactivity, and impulsiveness. Though such traits are often viewed negatively, it really depends on the environment. Research has backed the "evolutionary mismatch" theory that argues traits of neurodivergence, though perhaps disadvantageous in our hyperstimulated modern world, provided an evolutionary...

This Is the Fastest-Growing Black Hole Ever Discovered

'This quasar is the most violent place that we know in the universe,' says lead scientist

(Newser) - Astronomers have discovered what may be the brightest object in the universe, a quasar with a black hole at its heart growing so fast that it swallows the equivalent of a sun a day. As the AP reports, the record-breaking quasar shines 500 trillion times brighter than our sun. The...

'Aloof' Big Cats Are Partial to Keepers' Voices
Big Cats Are
Like Pet Cats
in One Big Way
in case you missed it

Big Cats Are Like Pet Cats in One Big Way

Familiar human voices draw longer, more intense responses than unfamiliar ones, researchers show

(Newser) - Domestic cats can tell their owner's voice apart from other humans, and apparently their larger cousins have that same capability, according to new research out of Michigan's Oakland University. In the study published Thursday in the PeerJ—Life and Environment journal, scientists wanted to see if tigers, cheetahs,...

Viagra Study Provides 'Food for Thought'
Viagra Study
Provides 'Food
for Thought'
in case you missed it

Viagra Study Provides 'Food for Thought'

Researchers find correlation between Viagra prescriptions, lowered Alzheimer's risk

(Newser) - It's an intriguing study that provides "food for thought," as its lead author puts it. Researchers found men who'd been prescribed Viagra and similar PDE5 inhibitor drugs were 18% less likely to develop Alzheimer's over a five-year period than those who hadn't been prescribed...

Scientists Followed 20 Polar Bears. Their Findings Are Grim

The creatures are starving as climate change causes ice melt and they can't access main prey

(Newser) - Imagine being a nursing mom who can't produce milk because you're starving, or trying to swim more than 100 miles after not eating for days. Those are just a couple of the scenarios Time notes are now plaguing polar bears in the Arctic as sea ice continues to...

Dino 'From Hell' Suggests There Was No Decline
Dino 'From Hell' Suggests
There Was No Decline
NEW STUDY

Dino 'From Hell' Suggests There Was No Decline

New caenagnathid species, and a possible second, suggest this dino family was doing fine

(Newser) - Paleontologists have been debating whether the asteroid that killed non-avian dinosaurs took out a varied group of thriving reptiles or one already in decline . Now, researchers say they've discovered a new dinosaur species whose very existence disputes the latter argument. The argument is largely based on apparent declines in...

For These 5, Alzheimer's Was Medically Acquired
Medical Miscue May Have
Given Patients Alzheimer's
NEW STUDY

Medical Miscue May Have Given Patients Alzheimer's

Study suggests disease was triggered by human growth hormone shots derived from cadavers

(Newser) - Doctors once sought to make very short children taller by injecting them with growth hormone taken from the brains of dead people. The procedure was banned 40 years ago—and cadaver-derived pituitary growth hormone (c-hGH) replaced with a synthetic version—when scientists discovered patients had also received bits of protein...

For These Alzheimer's Patients, the Eyes Offer a Clue
For These Alzheimer's Patients,
the Eyes Offer a Clue
in case you missed it

For These Alzheimer's Patients, the Eyes Offer a Clue

Vision issues may be early sign of posterior cortical atrophy, a rare form of the disease

(Newser) - Alzheimer's patients typically begin to show signs they have the disease via memory issues, but for some patients, an early warning sign arrives another way. Per the Washington Post , there's a rare variant of the condition, called posterior cortical atrophy , in which patients start having vision problems early...

In States With Abortion Bans, This Number Stands Out

There were 520K rapes in 14 states, resulting in 64K pregnancies

(Newser) - In September 2021, Texas Gov. Greg Abbott insisted that his state's strict six-week abortion ban was adequate time for women to obtain an abortion, and that he would "eliminate all rapists" in his state, implying that pregnancies from rape in Texas would eventually no longer be an issue....

State Stumps Bigfoot Research
State Stumps Bigfoot Research
new study

State Stumps Bigfoot Research

Analysis ties sightings to bear population but can't explain Florida

(Newser) - The black bear has long been a potential suspect in Bigfoot sightings. The size fits, as a bear can go about 7 feet tall when standing on two legs. And researchers have pointed out before that sasquatch sightings have been heavy in areas with lots of black bears . This study...

Wearing Hearing Aids Could Be a Lifesaver
Wearing Hearing Aids
Could Be a Lifesaver
NEW STUDY

Wearing Hearing Aids Could Be a Lifesaver

Study found the devices could reduce risk of early death by 24%

(Newser) - People with hearing loss overwhelmingly opt not to wear hearing aids, but a new study makes a strong case for scheduling a trip to the ENT. While the benefits hearing aids can contribute to long-term health have long been established, research now suggests that people who wear them are more...

Ancient DNA Provides 'Quantum Leap' in Understanding of MS

Herders who migrated to Europe 5K years ago brought increased risk of disease, researchers say

(Newser) - Around 5,000 years ago, a people called the Yamnaya swept into northwestern Europe on horseback, bringing their wagons, cattle, and sheep—along with genes that researchers believe are responsible for higher rates of multiple sclerosis in the region today. In a study published in the journal Nature , researchers say...

On Climate Studies, Meet the 'Worst-Worst-Case Scenario'

Renowned scientist's new study warns that a feared acceleration of warming is already underway

(Newser) - As the world puts to bed the hottest year on record, the Washington Post calls attention to a study suggesting we haven't seen anything yet. The paper by renowned climate scientist James Hansen—the New York Times notes that it was Hansen's testimony before Congress 35 years ago...

Your Snacking Habits Really Do Add Up
Your Snacking Habits
Really Do Add Up
in case you missed it

Your Snacking Habits Really Do Add Up

Study finds Americans eat roughly a meal's worth of calories in snacks each day

(Newser) - Those snacks you're grabbing between meals add up, or so says a new study out of the Ohio State University. A survey of nearly 24,000 Americans over age 30 indicates our snacking clocks in at an average 400 to 500 calories a day—or between 19.5% and...

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