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The involvement of the brain's opioid system in runner's high suggests one possible explanation for why:
U.S. Soldiers
Members of the United States Armed Forces, particularly the Army, who serve and protect the country through military service.
World War I
A major international conflict from 1914 to 1918, involving many of the world's nations, including all of the great powers, eventually forming two opposing military alliances: the Allies and the Central Powers.
Alien and Sedition Acts
A series of laws passed in 1798 by the Federalist Congress aimed at protecting the United States from foreign influence and sedition, criticized for restricting freedom of speech.
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