Jon Hamilton
Stories
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How the sex of one fetus can affect its neighbors in the womb
A sibling can change your life — potentially even before birth. The sex of one fetus can affect its neighbors in the womb. The "intrauterine position effect" was first discovered in cattle farming.
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NIH scientists, studying Havana syndrome patients, find no physical trace of harm
Two new government studies found no medical explanation for the cluster of symptoms known as Havana syndrome.
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National
More studies challenge the idea that Havana syndrome comes from foreign adversaries
Two new government studies found no unusual pattern of injury or illness in people with the mysterious cluster of symptoms known as Havana syndrome.
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National
New blood tests can help diagnose Alzheimer's — but some aren't as accurate as others
Now that there are drugs to treat Alzheimer's, blood tests to detect it will likely become an attractive, low-cost option to decide who can get treatment. Some tests are more accurate than others.
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A fibrous path 'twixt heart and brain may make you swoon
A newly discovered pathway between the heart and brain can cause fainting, at least in mice.
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A little electric stimulation in just the right spot may bolster a damaged brain
A small study found that electrically stimulating an area deep in the brain allowed people with severe traumatic brain injuries to complete a cognitive test more quickly.
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National
A small study offers hope for people with traumatic brain injuries
A study suggests that deep brain stimulation can improve focus and attention in people recovering from a traumatic brain injury. This could offer a path for those living with debilitating impairments.
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Salty much? These brain cells decide when tasty becomes blech
Scientists say two separate brain circuits control how much salt we consume.
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Pain, fatigue, fuzzy thinking: How long COVID disrupts the brain
The neurological symptoms of COVID can persist for years after an infection. Scientists are just beginning to understand why.
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Scientists built the largest-ever map of the human brain. Here's what they found
A new atlas of the human brain could help explain abilities like language – and vulnerabilities, like Alzheimer's disease.