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- Serotonin
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A neurotransmitter involved in mood management and associated with happiness. Often called the “happiness hormone”, serotonin activates or inhibits brain activity depending on the receptor to which it binds. Serotonin is essential for neurons to communicate with each other.
- Vegetative Centre :
A group of neurons involved in the functioning of the vegetative nervous system, which autonomously regulates many internal functions such as blood pressure or body temperature.