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Results 1 - 1 of 1 for DOPAMINE OR MELATONIN OR ACETYLCHOLINE OR ".GAMMA.-AMINOBUTYRIC" ACID OR NOREPINEPHRINE OR HISTAMINE OR LEVODOPA OR TYRAMINE OR "5-METHOXYTRYPTAMINE" OR SEROTONIN OR TAURINE OR PHENETHYLAMINE
  1. Seasonal Affective Disorder (National Library of Medicine)  
    ... people with SAD may have an imbalance of serotonin, a brain chemical that affects your mood. Their bodies also make too much melatonin, a hormone that regulates sleep, and not enough ...
    https://medlineplus.gov/seasonalaffectivedisorder.html - Health Topics