5.Nibibanziriza serotonine mu mubiri kandi igahinduka muri serotonine, bityo bikagira ingaruka ku bwonko bwa neurotransmitter.Imwe mumikorere yingenzi ya 5-HTP nukongera serotonine.Serotonine ni neurotransmitter igira uruhare runini mugutunganya umwuka, ibitotsi, ubushake bwo kurya, no kumva ububabare.