Related topics: sleep

Smart earbud will measure how astronauts sleep

Sleep is important for our health and well-being, and bad sleep can negatively impact our attention span, memory, decision-making skills, creativity and judgment.

Do all animals sleep?

"Nothing is certain except for death and taxes," said Benjamin Franklin. Of course, he left out another certainty for humankind: sleep. All humans sleep, albeit some better than others. But do all animals sleep, too?

Fruit flies adapt activity to 'white nights'

Evolution takes place constantly, everywhere in nature. Nevertheless, it is always exciting for biologists to observe evolution "in real time." One such opportunity for observation is currently being presented by the internal ...

New findings on the internal clock of the fruit fly

Most living organisms have an internal clock which, among other things, controls the sleep-wake rhythm. The internal rhythm lasts approximately one day (circadian), i.e. about 24 hours, and is regulated by means of various ...

SRC-3 is a key regulator of the 12-hour clock

Many people have heard of the circadian rhythms or biological processes that follow a 24-hour cycle. Sleeping at night and being awake during the day is a well-known example of a circadian rhythm. Less well known are the ...

New machine learning technology explores circadian rhythms

We all have an internal clock but what makes us tick? Scientists at the Earlham Institute and IBM Research have developed new artificial intelligence (AI) and machine learning (ML) technology to understand how gene expression ...

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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.

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