Which neurotransmitter(s) is/are involved in mood fluctuations?

1 Answer
Mar 13, 2016

A neurotransmitter is a chemical messenger released endogenously that influences nervous communication.


Neurotransmitter levels fluctuate every time. They are the ones responsible for ones mood. The 3 major neurotransmitters responsible for a persons mood are:-

  1. Dopamine - focus, drive, attention, memory and clear thinking.
    Increases sexuality.
  2. Serotonin - Dampens Sexuality, mood, anxiety, arousal, aggression, impulse control and thinking abilities. Excess amounts of serotonin
    cause relaxation, sedation, apathy and a decrease in sexual drive.
    Serotonin deficiency is associated with low mood, lack of will power
    and poor appetite control.
  3. Noradrenaline - fast memory, quick reaction time, mental energy, alertness and attention, goal seeking and sexual behaviour.

Varying the mix of these three neurotransmitters can produce large variations in mood and personality.

Apart from these, there are more neurotransmitter's involved. You can refer to them. Click here.