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Most people who do a lot of exercise, particularly in the form of competitive athletics, have unneurotic, extraverted, optimistic personalities to begin with. (Marathon runners are exceptions to this.)

Most people who do a lot of exercise, particularly in the form of competitive athletics, have unneurotic, extraverted, optimistic personalities to begin with. (Marathon runners are exceptions to this.)

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Attribution & collection notes
Author or tradition
Robert M. Sapolsky
Attribution: attributed
Country attributed
Not established
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Historical period
Historical period not yet established
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Contributor-provided quotation collection

Supplied reference C; CSV row 325917; supplied attribution, independently unverified

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