In a tough conversation, it is easy to lose our cool, regret it and wonder what we could have done better. Consultant Cynthia ...

For example, the sympathetic nervous system activates the "fight-or-flight" response in reaction to danger, concentrating energy on immediate survival and halting less urgent functions such as ...

Following acute multiple trauma, hypothalamic stimulation of the sympathetic nervous system and adrenal glands causes an increase in circulating corticoids and catecholamines, or a stress response.

This rudimentary sympathetic nervous system is derived from an embryonic structure called the neural crest, they show. The ...

So, what caused this day-night rhythm in the heart? “Well, one thing is this local circadian clock, but what this paper shows is that there's something else, and that's the sympathetic nervous system, ...

The brain science is clear. In the face of a threat, the amygdala sends out a distress signal that activates the sympathetic nervous system and sends adrenaline surging through your body.

Heart Rate Increase in rate of contraction of cardiac muscle - cardiac output increases Decrease in rate of contraction of cardiac muscle - cardiac output decreases Breathing Rate Smooth muscle of ...