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'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

Top 5 tips for buying an electric toothbrush for kids, according to experts

By Anna Gora published

Buying guides Looking for an electric toothbrush for your little one? Here's everything you need to consider before you click “add to cart”

Buying guides
Kegan Gill

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

By Jane Palmer published

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.

Health

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

By Jane Palmer published

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

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Neuroscience

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

By Stephanie Pappas published

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.

Viruses, Infections & Disease
A close-up picture of our reviewer wearing the Amazfit Active Max smartwatch

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

By Anna Gora published

Reviews The Amazfit Active Max has surprisingly good specs and an unusually wide range of features for a smartwatch that costs just $169.99.

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

Best air purifiers for allergies 2026: Breathe easy this winter

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
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
Illustration of the human heart.

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

By Lauren Schneider published

A surprising autopsy marked the first time a bony, supportive structure was documented in an adult human heart, medical examiners reported.

Heart & Circulation

Men develop cardiovascular disease 7 years before women

By Clarissa Brincat published

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.

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Heart & Circulation

Preserved hair reveals just how bad lead exposure was in the 20th century

By Kristina Killgrove published

A new study reveals the dramatic decrease in lead exposure in the U.S. following the establishment of the Environmental Protection Agency 55 years ago.

Health
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