Neurotransmitters
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The increase in dopamine levels is directly responsible for the sensation of pleasure we feel at the moment of a given behavior, but it also precedes and facilitates it, and is therefore responsible for motivation and pleasure-seeking. However, when the behavior in question becomes repeated, dopamine levels decline, leading to a depletion of the pleasure effect. Serotonin plays an important role in functions such as sleep, appetite, pain, temperature regulation, mood and so on. Serotonin imbalance is known to cause depression, aggression, hyperactivity and obsessive-compulsive disorders. Norepinephrine is a neurotransmitter that increases heart rate and plays a role in emotions, sleep and learning. The release of adrenalin provokes the desired excitement. When there is too much noradrenalin, the brain automatically produces endorphins, a neuromodulator that restores a certain balance in the brain. To balance the excess noradrenalin, the production of endorphins increases. But when activity stops, there aren't enough endorphins to regulate the hypersecretion of noradrenalin. You feel unwell and experience unpleasant sensations - this is the withdrawal symptom. |
updated on 4/28/24
