Medical research

Breathless: How blood-oxygen levels regulate air intake

Researchers have unraveled the elusive process by which small, highly vascular clusters of sensory cells in the carotid arteries "taste the blood," as a 1926 essay put it—the initial step in regulating blood-oxygen levels.

Psychology & Psychiatry

Understanding the brain's 'suffocation alarm'

Panic disorder is a severe form of anxiety in which the affected individual feels an abrupt onset of fear, often accompanied by profound physical symptoms of discomfort. Scientists have known from studying twins that genes ...

Pediatrics

Mutant protein takes babies' breath away

Babies start breathing in the womb, inhaling and exhaling irregularly at first, and then gradually more and more, until the day when they're born and have to do it all the time. But premature babies sometimes have trouble. ...

Genetics

Researchers extend human epigenomic map

Ten years ago, scientists announced the end of the Human Genome Project, the international attempt to learn which combination of four nucleotides—adenine, thymine, cytosine, and guanine—is unique to homo sapien DNA. This ...

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