I believe the answer is: activation of large nerve fibers in your spinal cord
Gate control theory was popularized by Ronald Melzack and Patrick Wall, it views that non-painful area input closes the doors or "gates" to the painful area input, this exist in order to prevents pain sensation from coming through the central nervous system and being transferred across our body.
The Reconstruction Act helped rebuild the United States after the Civil War.
An epigraph is a quotation placed at the beginning of a work or a chapter.<span>"Self-Reliance" was published in 1841 in a collection entitled Essays<span>. In 1844, Emerson published a second collection. The <span>essay urges readers to trust their own intuition and common sense rather than automatically following popular opinion </span></span></span>
The epigraphs to Emerson's essay "self-reliance" all somehow deal with independence and self-reliance.