Biological clocks: How does the body know that time goes by?

In April of this year, Spanish athlete Beatriz Flamini emerged into the light after a 500-day stay in a cave. Her descent underground is probably the longest undertaken by a long stretch. Flamini says she lost all sense of ...

Research reveals fruit fly circadian clock mechanisms

The higher the temperatures, the faster physiological processes are. But there is an exception: the so-called circadian clock, which regulates the sleep-wake cycle in organisms. A fascinating question for scientists is why ...

Scientists may need to rethink which genes control aging

To better understand the role of bacteria in health and disease, National Institutes of Health researchers fed fruit flies antibiotics and monitored the lifetime activity of hundreds of genes that scientists have traditionally ...

Finding a gene that regulates sleep

What keeps us awake—and helps us fall asleep? The answer is complex, but involves what are called circadian rhythms, which are found in all species with sleep-wake cycles—physical, mental, and behavioral changes that ...

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