In mammals, the circadian pacemaker resides in the paired suprachiasmatic nuclei (SCN)
and influences a multitude of biological processes, including the sleep–wake rhythm …

In mammals, the master clock of the suprachiasmatic nuclei (SCN) and subordinate clocks
found throughout the body coordinate circadian rhythms of behavior and physiology. We …

The suprachiasmatic nucleus of the hypothalamus (SCN) is the master circadian pacemaker
or clock in the mammalian brain. Canonical theory holds that the output from this single …

Organisms experience dramatic fluctuations in demands and stresses over the course of the
day. In order to maintain biological processes within physiological boundaries, mechanisms …

In mammals, 24-h rhythms of behaviour and physiology are regulated by the circadian clock.
The circadian clock is controlled by a central clock in the brain's suprachiasmatic nucleus …

The pronounced daily variation in the release of adrenal hormones has been at the heart of
the deciphering and understanding of the circadian timing system. Indeed, the first …

As a consequence of the Earth's rotation, almost all organisms experience day and night
cycles within a 24-hr period. To adapt and synchronize biological rhythms to external daily …

The circadian system is composed of coupled endogenous oscillators that allow living
beings, including humans, to anticipate and adapt to daily changes in their environment. In …

Over the past two decades, it has become clear just how much of our physiology is under the
control of the suprachiasmatic nucleus (SCN) and the cell-intrinsic molecular clock that ticks …

The stress system effectively restores the internal balance—or homeostasis—of living
organisms in the face of random external or internal changes, the stressors. This highly …