The Privacy Battle in Our Brains

My colleague talks about technology that can actually read our minds — and maybe even change them.

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At the Cybathlon, May the Best Brain-Computer Interface Win

Every four years at the Cybathlon, teams of researchers and technology “pilots” compete to see whose brain-computer interface holds the most promise.

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What Scientists Are Learning From Brain Organoids

Lab-grown “reductionist replicas” of the human brain are helping scientists understand fetal development and cognitive disorders, including autism. But ethical questions loom.

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Heavy Drinkers Develop Strokes Earlier, Study Shows

New research examined the link between alcohol and brain bleeds.

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Walking a Few Thousand Steps Daily May Reduce Alzheimer’s Risk, New Study Suggests

A new study suggests that exercise can be particularly beneficial for older people at a higher risk for the disease.

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What the Air You Breathe May Be Doing to Your Brain

Studies increasingly find links between higher concentrations of certain pollutants and the prevalence of dementia.

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Kim Kardashian Says She Was Diagnosed With a Brain Aneurysm

About one in every 50 people has an unruptured brain aneurysm. It was not clear whether Ms. Kardashian had experienced symptoms.

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He Was Expected to Get Alzheimer’s 25 Years Ago. Why Hasn’t He?

Scientists are searching for the secret in Doug Whitney’s biology that has protected him from dementia, hoping it could lead to ways to treat or prevent Alzheimer’s for many other people.

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A Stranger Shattered Their Lives. At First, They Didn’t Know Why.

A family reckons with the devastation left behind after a former N.F.L. player showed up on their property.

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C.T.E. Looms Over Friday Night Lights

Parents revealed conflicting emotions after the finding that a gunman who killed four people in July had the brain disease that has been linked with football and other contact sports.

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