Diagram showing molecular structures, formulas, and functions of neurotransmitters like dopamine, serotonin, norepinephrine, and oxytocin, with explanatory text about their functional groups and food sources that synthesize them.
A colorful infographic titled 'Happy Molecules' displays the chemical structures and descriptions of dopamine, serotonin, norepinephrine, and oxytocin, highlighting their functional groups and effects.