noun
- a hormone and neurotransmitter that increases heart rate and blood pressure and is released by the adrenal glands during stress
Usage: biochemistry; also called norepinephrine
Examples
- The doctor explained that noradrenaline helps the body respond to dangerous situations.
- High levels of noradrenaline can cause anxiety and rapid heartbeat.
- Noradrenaline is released when you feel threatened or excited.
- The medication blocks the effects of noradrenaline in the nervous system.
- Scientists study how noradrenaline affects memory and attention.
- During the fight-or-flight response, noradrenaline prepares the body for action.