News tagged with circadian rhythms

Related topics: sleep

Dodge the jet lag, enjoy your trip

(HealthDay)—People crossing time zones may assume jet lag is something they have to endure—like airport delays and lost luggage. But there are several ways travelers can prepare for and minimize jet lag's troubling effects, ...

Jul 13, 2016
popularity5 comments 0

How the retina marches to the beat of its own drum

Researchers at Johns Hopkins and the University of Washington report new research that sheds light on how the retina sets its own biological rhythm using a novel light-sensitive pigment, called neuropsin, found in nerve cells ...

Sep 29, 2015
popularity207 comments 0

Setting the circadian clock

Often referred to as the "body clock", circadian rhythm controls what time of day people are most alert, hungry, tired or physically primed due to a complex biological process that is not unique to humans. Circadian rhythms, ...

Jun 12, 2015
popularity31 comments 0

Smartphones uncover how the world sleeps

A pioneering study of worldwide sleep patterns combines math modeling, mobile apps and big data to parse the roles society and biology each play in setting sleep schedules.

May 06, 2016
popularity60 comments 0

Is 'when we eat' as important as 'what we eat'?

In a review of research on the effect of meal patterns on health, the few studies available suggest that eating irregularly is linked to a higher risk of metabolic syndrome (high blood pressure, type 2 diabetes and obesity). ...

Jun 21, 2016
popularity119 comments 0

Circadian rhythm

A circadian rhythm is a roughly-24-hour cycle in the biochemical, physiological or behavioral processes of living entities, including plants, animals, fungi and cyanobacteria (see bacterial circadian rhythms). The term "circadian", coined by Franz Halberg, comes from the Latin circa, "around," and diem or dies, "day", meaning literally "approximately one day." The formal study of biological temporal rhythms such as daily, tidal, weekly, seasonal, and annual rhythms, is called chronobiology.

Circadian rhythms are endogenously generated, and can be entrained by external cues, called Zeitgebers, the primary one of which is daylight. These rhythms allow organisms to anticipate and prepare for precise and regular environmental changes.

This text uses material from Wikipedia, licensed under CC BY-SA

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