Dopamine and serotonin are the two most important neurotransmitters in the brain. Their effect has been linked to several functions of the brain. Although these two hormones work the same, each has its distinct function and symptoms.
Dopamine is a neurotransmitter that is responsible for ecstasy, satisfaction, achievements celebration. Wherever we celebrate success or fall in love, our brain secretes dopamine. Lack of dopamine can be noticed in a person with low motivation, energy, poor digestion. Dopamine is classified as an excitatory neurotransmitter because of its stimulatory effects. Dopamine is synthesized from amino acid tyrosine.
Serotonin is an inhibitory neurotransmitter. Serotonin makes a person calm and also brings a good mood. It regulates things like sleep, appetite, suppresses pain, etc. a person that has balanced serotonin can feel important life, but someone that has a low one can be suicidal. It is synthesized from amino acid tryptophan.