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In Drosophila, the tissue is more permeable to drugs at night, offering a possible explanation for why some medicines work better at certain times of day.

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image: How to Tell a Person’s “Brain Age”

How to Tell a Person’s “Brain Age”

By Diana Kwon | May 22, 2017

Using brain scans and methylation markers, scientists develop ways to assess neurologic aging in humans.

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image: Gut Microbes Influence Circadian Clock

Gut Microbes Influence Circadian Clock

By Anna Azvolinsky | April 16, 2015

Metabolites produced by gut microbes in mice can affect the animals’ circadian rhythm and metabolism. 

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image: Triglyceride Clock

Triglyceride Clock

By Abby Olena | February 10, 2014

The timing of meals affects the levels of lipids in the livers of mice, according to a study.

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image: Out of Sync

Out of Sync

By Kerry Grens | September 1, 2013

Why eating at the wrong times is tied to such profound and negative effects on our bodies

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image: Mind the Clock

Mind the Clock

By Kerry Grens | September 1, 2013

Many of the body's tissues can tell time, and these peripheral clocks can be influenced by environmental cues, such as the timing of food consumption.

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image: In Evolution's Garden

In Evolution's Garden

By Megan Scudellari | June 1, 2013

Raising one evolutionary question after another, Brandon Gaut has harvested a crop of novel findings about how plant genomes evolve.

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