You may have naturally low dopamine production or release (or low ATP or GTP). Everyone will react differently because genetics so you are right, everyone needs

You may have naturally low dopamine production or release (or low ATP or GTP). Everyone will react differently because genetics so you are right, everyone needs to be mindful of their reaction. You might want to look at this pathway, and the enzymes, and the cofactors for these enzymes: https://www.researchgate.net/profile/Pingyuan-Gong/publication/316361485/figure/fig1/AS:514765312270336@1499741022363/Dopaminergic-pathway-genes-and-serotonergic-pathway-genes-Dopaminergic-pathway-genes-A.png https://www.researchgate.net/profile/Pingyuan-Gong/publicati... Tyrosine 3-monooxygenase (TH) needs Iron Aromatic-L-amino-acid decarboxylase (DDC) needs B6