Serotonin and Substance P are important neurotransmitters, and key factors in understanding Fibromyalgia

A neurotransmitter is a substance that passes signals or information across the synapse (junction) that separates one nerve cell from another. Neurotransmitters are stored in the nerve cell's end.

When an electrical impulse travels down the nerve cell, it causes the release of the neurotransmitter, which then travels across the synapse and either promotes or inhibits continued electrical impulses along the nerve.

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