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an illustration of men and women with their brains superimposed over the heads
Is there really a difference between male and female brains? Emerging science is revealing the answer. Brain scans, postmortem dissections, artificial intelligence and lab mice reveal differences in the brain that are linked to sex. Do we know what they mean?
An illustration of bacteria in the gut
We may finally understand how metformin lowers blood sugar, animal study finds The common diabetes drug metformin works partly by excreting sugar from the bloodstream into the intestines, where gut bacteria then convert it into chemicals that improve the insulin response.
A close-up image of the face of a bat with their wings folded under their face
Diagnostic dilemma: Growing weed with bat poop left 2 men with deadly infections Using bat poop to fertilize plants like cannabis can sometimes have deadly consequences. A report highlights two fatal cases that affected men in New York.

Latest about Health

Hand pouring a cup of tea from a stylish transparent teapot into a clear cup.

Brewing tea can remove lead and other heavy metals from water, new study finds

By Ben Turner published

Tea leaves can remove heavy metals such as lead, cadmium and chromium from water. And steeping time has the biggest impact.

Health
An illustration of particles of the measles virus in red and white against a dark background.

Death reported in Texas measles outbreak is 1st in US in a decade: What to know

By Emily Cooke published

An outbreak of measles in Texas has infected 124 people so far — 18 of whom have subsequently been hospitalized and one who has died.

Viruses, Infections & Disease

Surgeons remove parasitic twin from teenager who had legs growing out of his chest

By Patrick Pester published

A rare parasitic twin protruding from the chest of a 17-year-old boy has been removed by surgeons in Delhi, India.

Surgery
Cyber Monday under desk treadmill deals: Man walking on under desk treadmill in an office

Under desk treadmill deals: Save money and exercise while you work

By Kirsty Welsh, Kate Carter last updated

Buying Guide Bring movement into your work day: Get your steps in while at work with these under desk treadmill deals.

Buying Guide
A group of women riding on exercise bikes in the gym

Best exercise bikes 2025: From budget options to premium smart bikes

By Sam Hopes, Anna Gora last updated

Buying Guide These are the best exercise bikes you can buy, from the Peloton Bike and YOSUDA Bike to the Schwinn IC4.

Buying Guide
A woman running on a treadmill in a living room

Best treadmills 2025: Tried and tested by our fitness experts

By Harry Bullmore, Anna Gora last updated

BUYING GUIDE These are the best treadmills you can buy in every category, from NordicTrack x22i and Mobvoi Home Treadmill to Peloton Tread.

BUYING GUIDE

What are cancer vaccines?

By Marilyn Perkins published

Cancer vaccines harness the power of the immune system to stop tumors in their tracks. They work a little differently than regular vaccines intended to prevent infectious diseases, like measles or the flu.

Cancer

Diagnostic dilemma: Teen's improbable pregnancy occurred after oral sex

By Mindy Weisberger published

A teen girl with abdominal pain learned she was pregnant and had conceived under extremely unusual circumstances.

Fertility, Pregnancy & Birth

Mystery illness kills over 50 people in the Democratic Republic of the Congo

By Patrick Pester, Nicoletta Lanese published

A yet-unidentified illness has killed 53 people and potentially infected hundreds more in the Democratic Republic of the Congo. The World Health Organization is investigating the outbreak.

Viruses, Infections & Disease

Trump executive order calls mental health prescriptions a 'threat' — why?

By Megha Satyanarayana published

A federal commission to examine U.S. chronic disease could undercut real treatment for kids with depression, ADHD and other mental health challenges

Psychology
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