biological clock


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to biological clock: circadian rhythm

biological clock:

see rhythm, biologicalrhythm, biological,
cyclic pattern of physiological changes or changes in activity in living organisms, most often synchronized with daily, monthly, or annual cyclical changes in the environment.
..... Click the link for more information.
.

biological clock

[¦bī·ə¦läj·ə·kəl ′kläk]
(physiology)
Any physiologic factor that functions in regulating body rhythms.

biological clock

1. an inherent periodicity in the physiological processes of living organisms that is not dependent on the periodicity of external factors
2. the hypothetical mechanism responsible for this periodicity
References in periodicals archive ?
Dr Riccardo Marioni, of the University of Edinburgh's Centre for Cognitive Ageing and Cognitive Epidemiology, said: "The same results in four studies indicated a link between the biological clock and deaths from all causes.
The study, which took place at the Centre for Study and Treatment of Circadian Rhythms, suggests that though we still don't understand the mechanism by which the peripheral biological clocks adapt to night shift work, these clocks are believed to depend on the central clock.
A particular biological clock protein -- cryptochrome -- is actually regulating how the hormone that controls glucose production in the liver works in a specific way.
notatum and could explain the absence of a biological clock.
MEN have a biological clock as well as women and find it more difficult to father babies as they get older, scientists have proved for the first time.
Lately I can hear the ticking of my biological clock getting louder and louder.
Kim told me: 'At first, I wanted to start a family right away because my biological clock is ticking.
A change occurs in the biological clock of older adolescents," says Dr.
According to the biological clock of a lowland hackberry, that's old but not quite geriatric, and certainly worthy of human awe and respect.
But the biological clock does not run out on language-learning by the teenage years.
ISLAMABAD -- A group of scientists has identified a biological clock that could help predict how long we live, according to a study.
Boivin and her team showed that exposing workers to bright light at night tor adjusting work schedules can improve the synchronisation of the central biological clock to their atypical work schedule.

Full browser ?