english: Amino acids contain the precursors to neurotransmitters, the chemical messengers that carry signals between neurons, affecting things like mood, sleep, attentiveness, and weight.
non_english: Aminokiseline sadrže prethodnike neurotransmitera, hemijskih kurira koji prenose signale među neuronima, što utiče na stvari poput raspoloženja, sna, pozornosti i težine.