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The Latest Breaking News from Live Science

Needle-free insulin? Scientists invent gel that delivers insulin through the skin in animal studies

A new polymer gel can deliver insulin through intact skin in animal tests. It could someday offer a path toward needle-free diabetes treatment, some say.

LiveScience

Only certain types of brain-training exercises reduce dementia risk, large trial reveals

A large, 20-year trial showed that speedy cognitive exercises could reduce the risk of Alzheimer's disease and other types of dementia. The question is, could these tasks be adapted into video games?

LiveScience

'Night owls' may have worse heart health — but why?

Emerging evidence suggests that "night owls" are more likely to have poor heart health and a higher risk of heart attack or stroke than "morning larks." Why is that?

LiveScience

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Did ancient Greeks let women compete in the Olympics?

The ancient Olympic games were crowded with male athletes, but were there opportunities for females to compete in sports?

LiveScience

'There's no reason to ban us from playing': Analysis debunks notion that transgender women have inherent physical advantages in sports

A meta-analysis of 52 studies that included over 5,000 transgender people suggests that transgender women's physical fitness after hormone therapy is comparable to that of cisgender women.

LiveScience

Psychedelics may rewire the brain to treat PTSD. Scientists are finally beginning to understand how.

New research shows MDMA and psilocybin may restore neural flexibility in people with PTSD, thereby helping the brain unlearn fear and relearn safety.

LiveScience

Psychedelic drug ayahuasca could treat PTSD, early studies hint. But exactly how it works isn't clear.

Using methods such as brain scans and symptom tracking, scientists are beginning to study whether a complex psychedelic brew known as ayahuasca can help rewire the brain's response to trauma.

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Every major galaxy is speeding away from the Milky Way, except one — and we finally know why

A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding toward us while our other neighbors are moving away from us.

LiveScience

The 'mono' virus raises the risk of MS and cancer in some. 22 genes hint at why.

An infection with Epstein-Barr virus is a nonevent for most people. But for a subset, the virus can contribute to chronic conditions and cancer, and genes may play a role in that risk.

LiveScience

Spotted lanternflies are invading the US. They may have gotten their evolutionary superpowers in China's cities.

The alarming spread of spotted lanternflies across the U.S. has been made possible by cities acting as evolutionary incubators, fine-tuning the insects and enabling them to thrive.

LiveScience

Kanzi the bonobo could play pretend — a trait thought unique to humans

Past anecdotal observations have hinted that great apes play pretend. But now, experimental research shows that our closest living relatives can keep track of imaginary objects.

LiveScience

'Nitrogen fixing' trees could help tropical forests bounce back, research suggests

On the narrow isthmus of Panama, scientists discovered adding nitrogen to the soil doubled tree growth, providing new insights into forest restoration.

LiveScience

Asteroid 2024 YR4's collision with the moon could create a flash visible from Earth, study finds

If the building-size asteroid 2024 YR4 crashes into the moon in December 2032, the impact will produce a bright flash that may be visible to the naked eye, a new study finds.

LiveScience

Men develop cardiovascular disease 7 years before women, study suggests. But why?

Men's heart health tends to decline earlier in life, and the difference is driven largely by coronary heart disease, which appears roughly a decade sooner in men than in women.

LiveScience

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'System in flux': Scientists reveal what happened when wolves and cougars returned to Yellowstone

Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal their prey, cougars' shift from elk- to deer-heavy diets, paired with a rugged landscape for escape, might help cougars avoid violent wolf encounters.

LiveScience

In the search for bees, Mozambique honey hunters and birds share a language with distinct, regional dialects

People searching for honey in Mozambique work with birds via a shared language in a rare case of cooperation between humans and wild animals. This language also comes with regional dialects — that appear to be driven by the birds.

LiveScience

The Colorado River's largest tributary flows 'uphill' for over 100 miles — and geologists may finally have an explanation for it

Millions of years ago, the Green River carved a path through the Uinta Mountains instead of flowing around the formation. Now, researchers have discovered how this could have happened.

LiveScience

When were boats invented?

The oldest physical boat is a canoe from roughly 10,000 years ago, but evidence suggests humans have been using watercraft for at least 50,000 years.

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LiveScience

Astronomers spot 'time-warped' supernovas whose light both has and hasn't reached Earth

Will two rare supernovas finally tell us how fast the universe is expanding? Perhaps, but we'll have to wait for it for them to 'reappear'.

LiveScience

New triple-drug treatment stops pancreatic cancer in its tracks, a mouse study finds

By targeting three key growth pathways at once, researchers eliminated pancreatic tumors in multiple mouse models and prevented the cancer from returning, a promising step toward overcoming treatment resistance.

LiveScience

Thousands of dams in the US are old, damaged and unable to cope with extreme weather. How bad is it?

Dams in the U.S. are showing signs of damage that are worsening with age and climate change. Could satellites help prioritize repairs amid budget and inspection constraints?

LiveScience

More than 43,000 years ago, Neanderthals spent centuries collecting animal skulls in a cave; but archaeologists aren't sure why

Neanderthals repeatedly returned to the cave to store horned animal skulls, revealing this cultural tradition was transmitted over time.

LiveScience

Critical moment when El Niño started to erode Russia's Arctic sea ice discovered

Scientists discover a tipping point that took place in 2000, where El Niño’s effect on sea ice loss in Siberia was amplified.

LiveScience

Can AI detect cognitive decline better than a doctor? New study reveals surprising accuracy

Designed to assist rather than replace doctors, a new autonomous tool scans clinical notes to highlight patients who may need urgent follow-up for cognitive decline and potential dementia.

LiveScience

430,000-year-old wooden handheld tools from Greece are the oldest on record — and they predate modern humans

Archaeologists have found the oldest-known surviving examples of handheld wooden tools.

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