In addition to sunlight, sleep and eating patterns can reset the body's circadian rhythm. Otherwise known as the biological clock, circadian rhythm controls the body's internal clock that regulates ...

Physical exercise triggers extracellular vesicles (EVs)—tiny particles in the blood—to act as temporary transport shuttles for key hormone precursors.

Disruptions to our circadian clocks—the internal molecular timekeepers "ticking" in nearly every cell of our body throughout ...

This glucocorticoid is a steroid hormone that is created from cholesterol and is released from the adrenal cortex within the zona fasciculata layer. The hypothalamus-pituitary-adrenal (HPA) axis works ...

Indiana University researchers have discovered a hormonal mechanism in hamsters that connects short winter days with increased aggression in females, and that it differs from the mechanism that ...