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Illustration of serotonin switch.

Say What? "Serotonin"

August 26, 2019  /  The NIDA Blog Team

The neurotransmitter serotonin—known as the "calming chemical"—has a bigger job than we thought.   Read More »

The serotonin neuron showing serotonin and serotonin receptors.

Word of the Day: Serotonin

March 12, 2014  /  Sara Bellum

Have you ever noticed all the different emotions you experience in a normal day? For example, you can feel happy in the morning when you find out you passed your bio quiz, grumpy at noon when you haven’t eaten since breakfast, and then sad when the football team loses the big Homecoming game. Read More »