PsychologyAugust 4, 2026

norepinephrine

NOR-ep-uh-NEF-rin

Definition

A neurotransmitter in the brain that helps regulate mood, focus, and energy levels.

Etymology

The word is a chemical compound of 'nor-' (indicating a chemical process) and 'epinephrine' (from Greek 'epi-' meaning upon and 'nephros' meaning kidney, where the related hormone adrenaline is produced).

In the news

The article identifies norepinephrine as a key chemical messenger influenced by certain medications to manage conditions like depression, anxiety, and ADHD. It is mentioned to explain the biological mechanism behind how specific psychiatric drugs help improve symptoms.

Therapy, medication and beyond: How the main types of mental health treatment actually work

Read the full article ↗

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