News tagged with circadian rhythms

Related topics: sleep

Circadian misalignment may impact diabetes risk

(HealthDay)—Circadian misalignment decreases insulin sensitivity and increases inflammation, and is independent of sleep loss in men, according to a study published in the June issue of Diabetes.

Jun 04, 2014
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Melatonin makes old bones stronger

Faleh Tamimi, a professor in McGill's School of Dentistry, is the leader of a research team that has just discovered that melatonin supplements make bones stronger in elderly rats and therefore, potentially, in elderly humans ...

May 27, 2014
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Resetting the metabolic clock

We've all heard about circadian rhythm, the roughly 24-hour oscillations of biological processes that occur in many living organisms. Yet for all its influence in many aspects of our lives—from sleep to ...

Jan 29, 2014
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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