Serotonin release in the brain controls functions such as sleep onset, pain sensitivity, blood pressure regulation, and control of mood. Serotonin-releasing neurons are unique in that the amount of neurotransmitter they release is normally controlled by food intake: Carbohydrate consumption–acting via insulin secretion and the “plasma tryptophan ratio”–increases serotonin release dramatically (by enhancing the brain… Continue reading Carbs are an addiction