Serotonin

 

Serotonin is a neurotransmitter which plays an important role In the central nervous system by carrying messages bidirectionally in the brain and the digestive system. It helps regulate autonomic functions, anger, aggression, body temperature, mood, sleep, vomiting, sexuality, and appetite. It is often called the "happiness" chemical because it contributes to making us feel good and comfortable. Skin picking is sometimes associated with serotonin imbalance and medications that restore serotonin levels can help treat the disorder.

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