«Total Number of People Taking Psychiatric Drugs in the United States», CCHR International, .
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Sally Curtin, Margaret Warner, and Holly Hedegaard, «Increases in Suicide in the United States, 1999–2014», NCHS Data Brief No. 241, April 2016, .
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По этой теме проведено много исследований. Их детальный анализ см. John Ratey and Eric Hagerman, Spark: The Revolutionary New Science of Exercise and the Brain (New York: Little, Brown, 2013).
