It's because you—and most other animals—have a kind of internal clock that controls the cycle of the day's biological activities, such as sleeping and waking. These daily biological activities are known ascircadian rhythmsbecause they are influenced by the regular intervals of light and dark ...
Bedtime is a distinct determinant of sleep behavior that may impact obesity risk, possibly through affecting circadian rhythms. Human endogenous circadian rhythms are coordinated by the suprachiasmatic nucleus of the hypothalamus, with a day/night cycle of approximate 24 hours, which is synchronized to...
Light is one of the major cues for adjustment of the circadian clock [18] and several aspects of the day/night (D/N) cycle could be used for the entrainment, like dawn, dusk, increasing light intensity, decreasing light intensity, continuous presence of light during daytime, or spectral ...
polymorpha is based on the relative amount of light and darkness within a cycle rather than the intrinsic rhythms generated by circadian clock. Our findings suggest that M. polymorpha has a daylength measurement system which is different from that of angiosperms centered o...
The currently assumed aetiology for delayed sleep phase disorder (DSPD) is a delay of the circadian system. Clinicians have sought to use bright light therapy, exogenous melatonin or chronotherapy to correct the disorder. However, these treatments have achieved unreliable outcomes for DSPD patients and...
Researchers from Harvard Medical School say that an afternoon nap can help deal with the body’s natural wake and sleep cycle (circadian cycle). Your body experiences a drop in wakefulness in the afternoon, and a nap is perfect to restore alertness. (1) ...
The TCA cycle was found to be a unique pathway in IL85, while cysteine and methionine metabolism was unique to B73 (Fig. 4F). The results presented here suggested that the AS of genes played an important role in the maize cold stress response and that there were obvious genotypic ...
Free-running circadian rhythms of locomotor activity of Tenebrionid beetles Trigonoscelis gigas Reitt., taken from the Turkmenian sand desert, were monitored in DD. The effects of microgravity (mu G) - 11 days in space flight aboard the Russian BION-10 ''COSMOS'' satellite, and of 2G ...
1The circadian timing system has been implicated in age-related changes in sleep structure, timing and consolidation in humans.2We investigated the circadi... Derk-Jan,Dijk,Jeanne,... - 《Journal of Physiology》 被引量: 634发表: 2004年 Neurobiology of the Sleep-Wake Cycle: Sleep Architecture...
Recent proteomic analyses from mouse liver over the circadian cycle have provided datasets on rhythmic protein levels37,38, but the proteins encoded by most of the 213 candidate NOC targets were not represented in these datasets, likely due to the sensitivity limits of the mass spectroscopy. ...