0 a hormone produced by the body, for example when you are frightened, angry, or excited, that makes the heart beat faster and prepares the body to react to danger -- 腎上腺素
To take just one example, traumatic damage to one organ may flood the entire body with adrenalin.
Neural impulses travel along sympathetic pathways to the adrenal glands, which are stimulated to secrete adrenalin (epinephrine).
For pure adrenalin, he argues, there is nothing quite like it.
Cortisol complements the effects of adrenalin during fightor-flight reactions.
There is no simple one-to-one relationship between a specific emotional reaction and a specific endocrine reaction but consistent relationships are demonstrable between adrenalin output, behavioural efficiency and emotional reaction.
Cortisol is released more slowly than adrenalin and continues to be secreted for longer period.
And fourthly, the presidency is overstaffed, at policy levels, by too many youthful loyalists with too much adrenalin flowing for their own good or the president's.
It could be described as the adrenalin pumped into our veins which could provide the regenerative force which our economy now requires.
