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an illustration of DNA
'Some of them have accuracy that's close to zero': Experts unpack the promise and pitfalls of genetic tests aimed at consumers Live Science spoke with a bioethicist and sociologist about emerging genomic technologies, including those that enable parents to "score" and "select" IVF embryos.
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A tan woman wearing sunglasses with long hair applies a dot of sunscreen to a young tan boy who scrunches up his face in response. A beach with toys is blurred but visible in the background.
Mineral sunscreen leaves an annoying white cast on skin — this new formula could change that Scientists have developed a new approach to formulating mineral sunscreen that could prevent it from leaving a white cast on the skin.
An illustration of a 3D transparent blue human body with red lines showing the nerves in the head and neck, with a blue human brain behind them
Sleep deprivation harms the gut via the vagus nerve, early study reveals New research reveals that sleep deprivation sends aberrant signals through the vagus nerve, triggering a serotonin surge that can kill gut stem cells.

Latest about Health

illustration of the appendix, depicted in pink, extending off of the colon, depicted in blue

The appendix evolved at least 32 times across 361 species, so it's 'unlikely to be a useless evolutionary accident,' research finds

By Phil Starks, Lilia Goncharova published

Two researchers explore the evolutionary history of the appendix and its role in human health.

Health
A series of purple blobby shaped cells with green pieces of microplastic in them against a black background

Microplastics that accumulate in the body may 'clog up' immune cells

By Kamal Nahas published

Microplastics that break off polystyrene food containers might prevent immune cells from fighting infections and clearing away dead cells, as well as reducing sperm counts, a mouse study hints.

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Health

Top 5 mistakes when using air purifiers during hay fever season

By Kat Bayly published

References If you're a hay fever sufferer, an air purifier may become your best friend this spring — but only if you use it right

References
An orange cat standing on top of an air purifier

Best air purifiers for pet owners 2026: Remove pet dander, hair and odors

By Tantse Walter last updated

Buying guides These are the best air purifiers for pets, from Levoit Vital 200S and AirDoctor AD3500 to SwitchBot Table Air Purifier.

Buying guides
An air purifier sitting in the middle of a living room

Best air purifiers 2026: Remove pollen, dust, smoke, pet dander and more

By Anna Gora, Lou Mudge last updated

BUYING GUIDE These are the best air purifiers you can buy in every category, from Levoit Core 600S and BlueAir Blue Pure 411i Max to Dyson Purifier Cool PC1.

BUYING GUIDE
An orange cat sitting on a sofa next to an air purifier

Best air purifiers for allergies 2026: Breathe easy this Spring

By Molly Cleary, Anna Gora last updated

BUYING GUIDE These are the best air purifiers for allergies you can buy in every category, from Levoit Core 600S and Molekule Air Pro to RabbitAir A3.

BUYING GUIDE
A woman with dark hair in a pony tail wearing a gray blazer looks at both a laptop and phone both displaying various bar charts.

'Rectal garlic insertion for immune support': Medical chatbots confidently give disastrously misguided advice, experts say

By Kerry Taylor-Smith published

AI chatbots are seduced by misinformation that is delivered in medical jargon, leading them to give potentially dangerous advice.

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Health
A top down shot of a pregnant person wearing a blue shirt and black pants sitting cross-legged on a blue bed, holding an ultrasound in front of them.

Woman born without a vagina or cervix went on to conceive a son naturally

By Lauren Schneider published

A woman's rare condition made it unlikely for her to conceive without reproductive assistance, but in her case, she eventually bore a child without fertility treatment.

Reproductive Health
a close-up picture of our reviewer's real-time running stats in his Garmin Fenix 8

Best running watches 2026: Premium picks and budget buys

By Lloyd Coombes last updated

BUYING GUIDE These are the best running watches in every category, from Garmin Fenix 8 to Apple Watch Series 8 and Coros Pace 2.

BUYING GUIDE
A woman wearing a blue tank top and jeans with long dark hair holds the arm of an older tan man wearing a gray shirt and a baseball cap as they walk down the street, their backs to the camera

Single protein could dramatically alter trajectory of Alzheimer's disease

By RJ Mackenzie published

In people destined to get Alzheimer's in their mid-40s, one protein can delay the onset of the disease by about 20 years.

Alzheimers & Dementia
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