Recent strides in circadian biology over the last several decades have allowed researchers
new insight into how molecular circadian clocks influence the broader physiology of …

The prominent circadian rhythms of the endocrine system are important for our broader
understanding of physiology and behavior, in both health and disease. There is now much …

Circadian rhythms are endogenously generated, daily patterns of behavior and physiology
that are essential for optimal health and disease prevention. Disruptions to circadian timing …

The circadian system of mammals is composed of a hierarchy of oscillators that function at
the cellular, tissue, and systems levels. A common molecular mechanism underlies the cell …

Hormone secretion is highly organized temporally, achieving optimal biological functioning
and health. The master clock located in the suprachiasmatic nucleus (SCN) of the …

Highlights•The circadian system coordinates physiology and behavior with time of
day.•Hormones broadly affect central and peripheral physiology and behavior.•The …

The nearly ubiquitous expression of endogenous 24 h oscillations known as circadian
rhythms regulate the timing of physiological functions in the body. These intrinsic rhythms …

Over recent years, a deeper comprehension of the molecular mechanisms that control
biological clocks and circadian rhythms has been achieved. In fact, many studies have …

Context: It has long been recognized that a “biological clock” residing in the suprachiasmatic
nucleus controls circadian or daily variations in physiological processes. Old observations …

Daily and seasonal rhythms in the endocrine system are co-ordinated by a hypothalamic
pacemaker, the suprachiasmatic nuclei (SCN) that is synchronised to solar time by direct …