Cryptochrome - biological clock - circadian rhythm - chronobiologyMany of the biological activities of living organisms are light dependent and revolve around the solar clock. A variety of behaviours and physiological processes are under the control of internal biological clocks. These internal clocks ...
The plant did this even when he kept it in a dark place all the time. Later scientists wondered about circadian rhythms in humans. They learned that man’s biological clock actually keeps time with a day of a little less than 25 hours instead of the 24 hours on a man-made clock. ...
The plant did this even when he kept it in a dark place all the time. Later scientists wondered about circadian rhythms in humans. They learned that man’s biological clock actually keeps time with a day of a little less than 25 hours instead of the 24 hours on a man-made clock. ...
A rhythm with a 24-hour cycle is called acircadian (from Latincirca,“about”;di,“day”—i.e., “about a day”), solar day, diel, daily, diurnal, or nychthemeral rhythm. Alunar tidal rhythm—the regular ebb and flow ofoceans and very large inland bodies of water—subjects seashore...
In humans, circadian rhythms can impact both mental and physical processes. An example is that the digestive system produces specific proteins in correlation with the timing of meals. Although circadian rhythms are mainly centered on light, movement can also impact them. Jetlag can impact a person...
Alteration of day and night is one of the essential circadian rhythms that build the phenomenon of sleep/wake in humans and other animals. Daily rhythms impact different individuals differently. Light exposure and an individual's circadian response are two aspects that create diversity in phenotype....
It is now known that the molecular circadian clock can function within a single cell; i.e., it is cell-autonomous. At the same time, different cells may communicate with each other resulting in a synchronized output of electrical signaling. These may interface with endocrine glands of the bra...
Humans and other animals keep time via an internal biological clock known as the circadian rhythm, which regulates 24-hour cycles of sleep, eating, and other activities.───人和其它动物凭借体内生物钟和着被称为昼夜节律的拍子,这种节律调节睡眠、饮食和其他24小时周期的活动。 As Richard Colonno see...
As in the case of humans, daily insect behavior follows a circadian rhythm that, mainly, times locomotor activity [65] and feeding [66]. Additionally, behavioral output that occurs only once or a few times in an insect’s lifetime, such as development, reproduction and diapause [67,68],...
This research was done with fruit flies, which have many genes and biological processes that are similar or identical to those of humans, retained through millions of years of evolution. Circadian clocks are so essential to health that they are found throughout the nervous system and peripheral ...