The following is a guest post from Nootropics University. Dopamine is the primary pleasure neurotransmitter used by the brain to signal that an activity is good, healthy or necessary, and that it should be repeated. Dopamine is used for focus, memory, maintaining mood, thinking accurately, and having energy, both physical and mental. With dopamine functioning … Continue reading How to Restore your Dopamine Receptors after Years of Adderall Use and Abuse