Health: News, features and articles

Malaria had nearly been eliminated around a giant dam in the Amazon — but then it came roaring back. Experts just discovered why.

By Olivia Maule Published 9 July 26

Interview

'800 seconds for a sick visit': Some factors driving antibiotic resistance have nothing to do with biology, says medical sociologist Julia Szymczak

By Nicoletta Lanese Published 9 July 26

New robotic heart mimics common, mysterious condition to help researchers study it

By Olivia Maule Published 9 July 26

'Explosive diarrhea' parasite infections confirmed in hundreds of people across US, with 1,251 in Michigan alone

By Pandora Dewan Published 9 July 26

We remember little to nothing of early childhood — and a recent mouse study may help explain why

By Roberta McLain Published 8 July 26

Diagnostic Dilemma

A woman heard voices for years — but not because of psychosis

By Anirban Mukhopadhyay Published 8 July 26

Tests that measure 'biological age' aren't helpful for tracking your health, scientists say

By Idan Shalev Published 29 May 26

Loneliness may contribute to memory issues, but not dementia — they are 'not the same thing'

By Ivana Babicova Published 19 April 26

Brain aging results from a loss of control over how genes are regulated, mouse study suggests

By RJ Mackenzie Published 26 March 26

Could gut microbes hold the secret to aging well? A researcher unpacks the emerging science

By Bill Sullivan Published 6 March 26

'The limits of human longevity have still not been reached,' study suggests

By Florian Bonnet Published 21 February 26

Lifespan may be 50% heritable, study suggests

By Victoria Atkinson Published 31 January 26

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

By Anirban Mukhopadhyay Published 28 January 26

Gray hair may have evolved as a protection against cancer, study hints

By Victoria Atkinson Published 9 December 25

Aging and inflammation may not go hand in hand, study suggests

By Clarissa Brincat Published 5 November 25

References

Top 5 tips for surviving hay fever season

By Kat Bayly Published 19 March 26

References

Top 5 mistakes when using air purifiers during hay fever season

By Kat Bayly Published 13 March 26

New Jersey man dies from meat allergy triggered by tick bite

By Nicoletta Lanese Published 14 November 25

REFERENCE

Do air purifiers help with allergies?

By Kerry Taylor-Smith Last updated 21 February 25

Is playing in the dirt good for kids' immune systems?

By Emily Cooke Last updated 28 November 24

REFERENCE

Do air purifiers help with dust?

By Katie Treharne Last updated 29 October 24

Could allergies be 'deleted' someday?

By Rebecca Sohn Last updated 12 April 24

Can you really be allergic to the sun?

By Anna Gora Published 15 December 23

What causes metal allergies?

By Anna Gora Published 1 November 23

Man who donated his body after death had rare 'triple penis'

By Mindy Weisberger Published 10 June 26

Scientists mapped all the nerves of the clitoris for the first time

By Lauren Schneider Published 3 April 26

Why don't teeth count as bones?

By Marilyn Perkins Published 29 October 25

Human skeleton quiz: What do you know about the bones in your body?

By Kristina Killgrove Published 14 October 25

What's the strongest muscle in the human body?

By Clarissa Brincat Last updated 10 October 25

Staring at the March 29 solar eclipse can cause eye damage in seconds — and you won’t even feel it happening

By Emily Cooke Published 28 March 25

New cells discovered in eye could help restore vision, scientists say

By Emily Cooke Published 27 March 25

Scientists describe new type of fat in human bellies

By Marianne Guenot Published 1 March 25

'Vestigial' human ear-wiggling muscle actually flexes when we're straining to hear

By Clarissa Brincat Published 31 January 25

Analysis

Dangerously hot and humid: Rising temperatures in the US make outdoor exercise hazardous

By Naomi Mihara Published 16 June 26

Buyers guide

Best running shoes for supination 2026: Find the perfect fit for your feet

By Harry Bullmore Last updated 29 March 26

BUYING GUIDE

Best running watches 2026: Premium picks and budget buys

By Lloyd Coombes Last updated 10 March 26

Buying Guide

Best Garmin watches 2026: From fitness bands to adventure smartwatches

By Andrew Williams Last updated 10 March 26

Buying guides

Best fitness trackers for beginners 2025: From Apple Watch to Garmin Forerunner 165

By Lloyd Coombes Last updated 18 February 26

Reviews

Amazfit Active Max review: The best budget smartwatch of 2026?

By Anna Gora Published 5 February 26

Buying guides

What to buy as a beginner runner: Must-haves vs non-essentials

By Kate Carter Published 2 February 26

Buying guides

Best Garmin smartwatches for runners 2026, tried and tested

By Andrew Williams Published 31 January 26

Reviews

Garmin Enduro 3 review: The longest-lasting sports watch series gets a price cut

By Andrew Williams Published 31 January 26

Life's Little Mysteries

Do you really have to wash rice before you cook it?

By Charles Q. Choi Published 14 June 26

Do the microbes in your gut influence what foods you like?

By Ashley Hamer Published 11 April 26

A gut microbe linked to the Mediterranean diet boosts muscle strength in mice

By Kamal Nahas Published 28 March 26

Liquid-nitrogen-infused cocktail popped a man's stomach like a balloon

By Kamal Nahas Published 28 January 26

Is there such a thing as 'too much' protein?

By Christoph Schwaiger Published 13 January 26

New US food pyramid recommends very high protein diet, beef tallow as healthy fat option, and full-fat dairy

By Nicoletta Lanese Published 7 January 26

An otherwise 'fit' man had a stroke after drinking 8 'high-potency' energy drinks a day

By Nicoletta Lanese Published 17 December 25

A woman's homemade juice led to life-threatening 'toxic squash syndrome'

By Nicoletta Lanese Published 12 November 25

A toxicologist explains when you can safely cut the moldy part off food, and when it's best to toss it

By Brad Reisfeld Published 1 November 25

INTERVIEW

'We can identify these really early, before the clinical diagnosis': Epigenetic markers may help explain why Native Hawaiians are aging faster

By Sophie Berdugo Published 24 May 26

DNA sequencing is rewriting our understanding of historic outbreaks, but it can't tell the whole story

By Marc Zimmer Published 23 May 26

'A landmark moment for the field': FDA approves first-ever gene therapy for inherited deafness

By Nicoletta Lanese Published 23 April 26

Gene therapy improves hearing in 90% of patients with inherited deafness in largest trial of its kind

By Nicoletta Lanese Published 22 April 26

Changing 'just one DNA letter' in female mice triggers growth of male genitalia

By Nicoletta Lanese Published 10 April 26

Are allergies genetic?

By Katherine Irving Published 4 April 26

A doctor discovered the gene mutation behind his family's mysterious missing-teeth condition

By Kamal Nahas Published 4 March 26

'It doesn't lie. So who are you?': What happens when DNA tests show a woman is not the mother of the child she gave birth to?

By Lise Barnéoud Published 27 February 26

INTERVIEW

'Some of them have accuracy that's close to zero': Experts unpack the promise and pitfalls of genetic tests aimed at consumers

By Nicoletta Lanese Published 22 February 26

New robotic heart mimics common, mysterious condition to help researchers study it

By Olivia Maule Published 9 July 26

Heart issues tied to 'microdamage' in the brain might raise risk of memory loss, study hints

By Clarissa Brincat Published 6 July 26

These patients' hearts stopped a dozen times a day. An innovative procedure has transformed their lives.

By RJ Mackenzie Published 12 June 26

A new test could flag people at risk for anemia by filming their eyeballs — no needles required

By Clarissa Brincat Published 26 May 26

Both very low and very high heart rates may be linked to higher stroke risk, study says

By Isha Ishtiaq Published 5 May 26

Rectal exam stabilized man's irregular heartbeat

By Mindy Weisberger Published 29 April 26

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

By Isha Ishtiaq Published 8 February 26

Man's autopsy reveals unexpected 'boomerang-shaped' structure in his heart

By Lauren Schneider Published 4 February 26

Men develop cardiovascular disease 7 years before women

By Clarissa Brincat Published 3 February 26

One underlying cause of inflammatory bowel disease pinpointed in new study

By Christoph Schwaiger Published 22 June 26

Diagnostic dilemma

Whiplike rashes appeared on a woman's back after she ate shiitake mushrooms

By Mindy Weisberger Published 27 May 26

A teen's classic diabetes symptoms didn't improve with treatment — revealing she also had a much rarer syndrome

By Nicoletta Lanese Published 22 April 26

Keratin may act as a 'brake' for skin inflammation, pointing to potential treatments

By Kenna Hughes-Castleberry Published 8 April 26

Viruses in the gut may help prevent blood sugar spikes, mouse study hints

By Sahana Sitaraman Published 23 March 26

An experimental mRNA treatment counters immune cell aging in mice

By Nicoletta Lanese Published 2 January 26

Insomnia and anxiety come with a weaker immune system — a new study starts to unravel why

By Kamal Nahas Published 11 December 25

Mitochondria aren't only the 'powerhouses of cells' — they also battle germs

By Andrew Monteith Published 29 July 25

Twin study reveals signs of MS that might be detectable before symptoms

By Michael Schubert Published 20 October 24

Interview

'800 seconds for a sick visit': Some factors driving antibiotic resistance have nothing to do with biology, says medical sociologist Julia Szymczak

By Nicoletta Lanese Published 9 July 26

The US is hooked on unregulated peptides. But are they effective, or even safe?

By Bethany Brookshire Published 4 July 26

Science Spotlight

Japan's bold experiment to curb antibiotic misuse has been a huge success. Could it work in the US?

By Nicoletta Lanese Published 29 June 26

Scientists infected a 'vagina on a chip' with gonorrhea — then cured it with a new antibiotic found by AI

By Kamal Nahas Published 26 June 26

Diagnostic Dilemma

After taking a medicine for years, a man suddenly had weird changes in his taste that made food disgusting

By Mindy Weisberger Published 24 June 26

Drug-induced 'brain freeze' may help protect the brain after a stroke, early study suggests

By Lauren Schneider Published 23 June 26

Century-old tuberculosis vaccine could help treat diabetes, trials hint. How?

By Clarissa Brincat Published 11 June 26

Genetically modified worms can now produce and deliver drugs inside a living body, scientists say

By Victoria Atkinson Published 10 June 26

3 new Ebola vaccines are being fast-tracked amid the current outbreak — when could they be ready?

By Jennifer Zieba Published 9 June 26

We remember little to nothing of early childhood — and a recent mouse study may help explain why

By Roberta McLain Published 8 July 26

Estrogen levels in both the male and female brain may shape memory's resilience in face of stress

By Nicoletta Lanese Published 19 June 26

Neuroscientists are searching for the 'cellular substrate of loneliness'

By Elizabeth Preston Published 14 June 26

Heading a soccer ball just once is enough to raise levels of proteins associated with brain damage

By Christoph Schwaiger Published 1 June 26

Rare genetic disease makes scientists reconsider what the 'seat of fear' in the brain really is

By Richard Stone Published 25 May 26

Landmark finding that showed brains of kids with ADHD mature later was actually a mirage in the data, new research finds

By RJ Mackenzie Published 22 May 26

Life's Little Mysteries

Why aren't brain transplants possible?

By Lauren Schneider Published 17 May 26

First-of-its-kind map of the mouse nose reveals surprises about the sense of smell

By Payal Dhar Published 28 April 26

Scientists invent artificial neurons that 'talk' to real brain cells, paving way to better brain implants

By Marianne Guenot Published 23 April 26

FACT FILE

What is PMOS (formerly PCOS)? What to know about the hormonal syndrome

By Sophie Berdugo Published 9 June 26

Poll

Poll: What do you think of PMOS, the new name for PCOS?

By Nicoletta Lanese Published 19 May 26

'The name was inaccurate': PCOS gets a new name after years-long effort

By Nicoletta Lanese Published 12 May 26

Pregnancy quiz: Can you deliver on the science of growing babies?

By Sophie Berdugo Published 9 May 26

'Two lives hang in the balance': Risky surgery in the womb saved baby from deadly disorder at just 25 weeks gestation

By Kamal Nahas Published 30 April 26

Preeclampsia could be treated with 'blood filtering' therapy, early study hints

By Lauren Schneider Published 28 April 26

Scientists identify main cause of extreme nausea and vomiting in pregnancy

By Sophie Berdugo Published 20 April 26

Sperm quality is at its peak in the summer, study finds

By Clarissa Brincat Published 13 April 26

'No one knows what they are': Researchers discover new type of cell that's seen only during pregnancy

By Nicoletta Lanese Published 8 April 26

How long can human sperm survive?

By Emma Bryce Published 25 May 25

Do animals have orgasms?

By Elana Spivack Published 13 April 25

Do sperm really race to the egg?

By Ashley Hamer Published 16 March 25

Sex leaves 'microbial traces' on genitalia, even when a condom is used — scientists call it the 'sexome'

By Emily Cooke Published 12 February 25

Scientists made mice with Y chromosomes female by deleting just 6 tiny molecules

By Sahana Sitaraman Published 22 May 24

Man's years of premature ejaculation had a rare cause

By Nicoletta Lanese Published 4 March 24

Viagra alternatives? Study of mouse erections hints at new ways to treat erectile dysfunction

By Nicoletta Lanese Published 8 February 24

Erectile dysfunction risk may rise on lengthy space missions, rat study reveals

By Emily Cooke Published 27 November 23

'Sex drive switch' discovered in male mouse brain that kicks their libido into overdrive

By Emily Cooke Published 16 August 23

In people with epilepsy, sleeping after a seizure may trigger more seizures

By Kamal Nahas Published 9 March 26

Sleep deprivation harms the gut via the vagus nerve, early study reveals

By Sahana Sitaraman Published 17 February 26

Are you a night owl or an early bird?

By Nicoletta Lanese Published 11 February 26

Scientists infiltrated volunteers' dreams to boost their creative thinking

By RJ Mackenzie Published 10 February 26

Do your dreams change as you age?

By Abby Wilson Published 29 November 25

Study reveals why the brain 'zones out' when you're exhausted

By Sophie Berdugo Published 13 November 25

'DST just seems so pointless': Poll reveals most Live Science readers want to eliminate daylight saving time

By Sophie Berdugo Published 7 November 25

Do people dream in color or black and white?

By Abby Wilson Published 1 November 25

Would you get rid of daylight saving time?

By Sophie Berdugo Published 28 October 25

INTERVIEW

'Eventually, it becomes you': Inventors of new 'living' knee replacement describe why this tech is desperately needed and how it works

By Nicoletta Lanese Published 25 April 26

'The ban assumed the danger was making pigs too human': Why human organs aren't grown in pigs in the US

By Monika Piotrowska Published 31 December 25

Science news this week

Science news this week: NASA finds best evidence of life on Mars and scientists invent visible time crystals

By Ben Turner Published 13 September 25

Science news this week

Science news this week: A key Atlantic current nears collapse, the world's biggest iceberg shatters, and mouse brains rewrite neuroscience

By Ben Turner Published 6 September 25

Scientists develop 'glue gun' that 3D prints bone grafts directly onto fractures

By Kristina Killgrove Published 5 September 25

Science news this week

Science news this week: A world first pig-to-human lung transplant, and SpaceX’s Starship nails a test flight

By Ben Turner Published 30 August 25

Early test of new laser-free eye treatment shows promise

By Olivia Ferrari Published 27 August 25

First-ever pig-to-human lung transplant attempted in brain-dead person in China

By Nicoletta Lanese Published 25 August 25

Are women less sensitive to anesthesia than men?

By Sahas Mehra Published 27 April 25

Malaria had nearly been eliminated around a giant dam in the Amazon — but then it came roaring back. Experts just discovered why.

By Olivia Maule Published 9 July 26

'Explosive diarrhea' parasite infections confirmed in hundreds of people across US, with 1,251 in Michigan alone

By Pandora Dewan Published 9 July 26

The hantavirus outbreak is over, WHO declares

By Ben Turner Published 2 July 26

11-year-old boy in Canada dies from rabies after waking up with a bat on his face

By Pandora Dewan Published 2 July 26

Rise in cancer in younger adults may be explained by faster 'biological aging,' early study hints

By Marianne Guenot Published 28 June 26

Diagnostic dilemma

Viral infection caused woman not to recognize her own father

By Nicoletta Lanese Published 17 June 26

INTERVIEW

'This might be the point of no return': Experts on the current measles outbreak and where we go from here

By Nicoletta Lanese Published 13 June 26

ANALYSIS

Scientists were excited about a blood test for many cancers — but it failed a big trial. Here's what to know.

By RJ Mackenzie Published 10 June 26

Explainer

Flesh-eating screwworm found in Texas cows and dog. Are humans at risk?

By Nicoletta Lanese Last updated 9 June 26