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This scientist rewarmed and studied pieces of his friend’s cryopreserved brain

This scientist rewarmed and studied pieces of his friend’s cryopreserved brain

L. Stephen Coles’s brain sits cushioned in a vat at a storage facility in Arizona. It has been held there at a temperature of around −146 degrees °C for over a decade, largely undisturbed. That is, apart from the time, a little over a year ago, when scientists slowly lifted the brain to take photos...

The Download: tracing AI-fueled delusions, and OpenAI admits Microsoft risks

The Download: tracing AI-fueled delusions, and OpenAI admits Microsoft risks

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. The hardest question to answer about AI-fueled delusions  What actually happens when people spiral into delusion with AI? To find...

Mind-altering substances are (still) falling short in clinical trials

Mind-altering substances are (still) falling short in clinical trials

This week I want to look at where we are with psychedelics, the mind-altering substances that have somehow made the leap from counterculture to major focus of clinical research. Compounds like psilocybin—which is found in magic mushrooms—are being explored for all sorts of health applications,...

Measles cases are rising. Other vaccine-preventable infections could be next.

Measles cases are rising. Other vaccine-preventable infections could be next.

There’s a measles outbreak happening close to where I live. Since the start of this year, 34 cases have been confirmed in Enfield, a northern borough of London. Most of those affected are children under the age of 11. One in five have needed hospital treatment. It’s another worrying development for...

US deputy health secretary: Vaccine guidelines are still subject to change

US deputy health secretary: Vaccine guidelines are still subject to change

Over the past year, Jim O’Neill has become one of the most powerful people in public health. As the US deputy health secretary, he holds two roles at the top of the country’s federal health and science agencies. He oversees a department with a budget of over a trillion dollars. And he signed the...

RFK Jr. follows a carnivore diet. That doesn’t mean you should.

RFK Jr. follows a carnivore diet. That doesn’t mean you should.

Americans have a new set of diet guidelines. Robert F. Kennedy Jr. has taken an old-fashioned food pyramid, turned it upside down, and plonked a steak and a stick of butter in prime positions. Kennedy and his Make America Healthy Again mates have long been extolling the virtues of meat and...

An experimental surgery is helping cancer survivors give birth

An experimental surgery is helping cancer survivors give birth

This week I want to tell you about an experimental surgical procedure that’s helping people have babies. Specifically, it’s helping people who have had treatment for bowel or rectal cancer. Radiation and chemo can have pretty damaging side effects that mess up the uterus and ovaries. Surgeons are...

The Download: squeezing more metal out of aging mines, and AI’s truth crisis

The Download: squeezing more metal out of aging mines, and AI’s truth crisis

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Microbes could extract the metal needed for cleantech In a pine forest on Michigan’s Upper Peninsula, the only active nickel mine in the US is...