Jon Hamilton

The Food and Drug Administration has approved a drug that extends the lives of children with an extremely rare genetic disorder that causes them to grow old before they grow up.

The disorder, progeria, ages cells rapidly and prematurely. As a result, affected children remain small and begin to look frail and old by the time they reach school age. Most die of heart disease in their early teens.

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LULU GARCIA-NAVARRO, HOST:

During deep sleep, the brain appears to wash away waste products that increase the risk for Alzheimer's disease.

A host of new research studies suggest that this stage of sleep — when dreams are rare and the brain follows a slow, steady beat – can help reduce levels of beta-amyloid and tau, two hallmarks of the disease.

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ARI SHAPIRO, HOST:

We continue to learn about the connection between sleep and Alzheimer's disease. NPR's Jon Hamilton brings us this report done with the NPR science podcast Short Wave.

The substance that makes some mushrooms "magic" also appears to help people with major depressive disorder.

A study of 27 people found that a treatment featuring the hallucinogen psilocybin worked better than the usual antidepressant medications, a team reported Wednesday in the journal JAMA Psychiatry.

If you fall off a bike, you'll probably end up with a cinematic memory of the experience: the wind in your hair, the pebble on the road, then the pain.

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AUDIE CORNISH, HOST:

Medical research was an early casualty of the COVID-19 pandemic.

After cases began emerging worldwide, thousands of clinical trials unrelated to COVID-19 were paused or canceled amid fears that participants would be infected. But now some researchers are finding ways to carry on in spite of the coronavirus.

Researchers appear to have shown how the brain creates two different kinds of thirst.

The process involves two types of brain cells, one that responds to a decline in fluid in our bodies, while the other monitors levels of salt and other minerals, a team reports in the journal Nature.

Together, these specialized thirst cells seem to determine whether animals and people crave pure water or something like a sports drink, which contains salt and other minerals.

Mental illness can run in families. And Dr. Kafui Dzirasa grew up in one of these families.

His close relatives include people with schizophrenia, bipolar disorder and depression. As a medical student, he learned about the ones who'd been committed to psychiatric hospitals or who "went missing" and were discovered in alleyways.

Dzirasa decided to dedicate his career to "figuring out how to make science relevant to ultimately help my own family."

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