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COVID-19 vaccines for kids are mired in uncertainty amid conflicting federal guidance
By David Higgins published
Opinion Abrupt policy changes and confusing public messaging have injected confusion in back-to-school vaccine protocols.

Best smart rings 2025 — Our top 3 sleep and fitness tracker rings, tried and tested
By Anna Gora published
Buying guides These are the best smart rings you can buy in every category, from Oura Ring Gen 4 and Ultrahuman Ring AIR to Amazfit Helio.

You may not really be allergic to penicillin. Here's how to find out if you are.
By Elizabeth W. Covington published
As many as 1 in 5 Americans believe they have a penicillin allergy, but just a tiny fraction actually do. In recent years, it's gotten a lot easier to find out.

Incredible, first-of-its-kind video shows human embryo implanting in real time
By Kristina Killgrove published
Scientists have captured a video showing the implantation of a human embryo for the first time, using a laboratory model of a uterus.

This AI-powered Oral-B Genius is our all-time best electric toothbrush — currently discounted by $120, the lowest ever price in this Amazon deal
By Paul Brett published
Deals Treat your teeth to the best electric toothbrush we've ever tested, which is now on sale for 60% off, and an overall $120 saving

Prominent medical journal refuses RFK's call to retract a vaccine study
By Anna Rogers published
A recent study that confirmed that aluminium in vaccines doesn't pose a risk to children has sparked a war of words between the RFK, Jr. and a U.S. medical journal.

Special protection may help human eggs stay fresh as the body ages
By Nicoletta Lanese published
A new study suggests that the mitochondria in human egg cells don't accumulate DNA mutations with age, which sets them apart from other tissues in the body.

Diabetic man produces his own insulin after gene-edited cell transplant
By Lydia Smith published
The new proof-of-concept study points a way to curing diabetes without the need for immune-suppressing drugs.

Girl's dental trouble caused a life-threatening eye infection
By Mindy Weisberger published
A girl went to her dentist complaining of a toothache and swelling around her eye. It turned out the two problems were connected.

Last chance — the Oura Ring Gen 3 is now at its lowest-ever price and the last remaining stocks are selling out fast
By Anna Gora published
Deals With a generous 28% discount, this excellent smart ring is now at half the price of the newer Oura Ring Gen 4 — but hurry, this offer will not last long.
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