Epinephrine is a neurotransmitter mostly used for medical treatment purposes. It is mainly used for treating asthma, anaphylaxis, and cardiac arrest. Epinephrine is more commonly known as adrenaline, and it is what induces the fight-or-flight feeling when you face perceived threat or harm.
Epinephrine has been found to have a role in the formation of memories . Particularly, epinephrine has a positive influence in long-term potentiation, that is, it helps strengthen the synapses between neurons . This strengthening of synapses is thought to be responsible for effective learning and for the formation of memories.
When under emotional stress, our bodies respond by pumping cortisol and epinephrine into the bloodstream. This, in turn, causes our blood pressure to rise. Oxygen is delivered to our muscles, so that we can have all of our physical prowess at our disposition. In such situations, epinephrine provides the us with the ability to “fight” or “fly” .
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