Examlex
Increasing tryptophan helps the brain produce ____, which induces sleepiness.
North America
A continent in the Northern Hemisphere and almost entirely within the Western Hemisphere; it includes countries such as Canada, the United States, and Mexico.
King George's War
The North American theater of the War of the Austrian Succession (1740-1748) involving French and British colonies.
New England
A region in the northeastern United States known for its colonial history, comprising states such as Massachusetts, Connecticut, Rhode Island, New Hampshire, Vermont, and Maine.
Middle Colonies
A term referring to the British colonies of New York, New Jersey, Pennsylvania, and Delaware in North America, known for their diverse populations, agricultural production, and trade in the 17th and 18th centuries.
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