What chemicals make us happy

Not Medical Advice: Serotonin, Melatonin, Endorphins, Dopamine, & Anandamide are natural chemicals that keep a person happy. Serotonin is made in the brain.
Updated on Monday, February 06 2012 at 02:23PM EST
Source: io9.com/...
Collections: dopamineendorphinmelatoninserotoninchemicals 

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