These two neurotransmitters are "Serotonin" and norepinephrine.
Depression is related with low levels of serotonin and norepinephrine. These are synapses (compound couriers) known to influence inclination. Serotonin is in some cases called a “feel-good” compound since it's related with positive sentiments of prosperity. Norepinephrine is identified with alertness and vitality.