Peak production of rhythmic proteins occurs at two times of day

Sleep disorders are reported to affect 50 to 70 million Americans, and have been linked to obesity and diabetes, as well as depression and other psychiatric disorders. Circadian cycles are driven by biological clocks that ...

Plants use circadian rhythms to prepare for battle with insects

In a study of the molecular underpinnings of plants' pest resistance, Rice University biologists have shown that plants both anticipate daytime raids by hungry insects and make sophisticated preparations to fend them off.

The chemical that tells plants when it's time to sleep

Each of us goes through a daily cycle. We wake up, spend the day eating, working and playing, and then we sleep. Messing with this cycle by not sleeping, doing shift work, travelling to a different time zone or living where ...

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