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Confidence Quote by Robert M. Sapolsky

“Testosterone also increases confidence and optimism, while decreasing fear and anxiety.5 This explains the “winner” effect in lab animals, where winning a fight increases an animal’s willingness to participate in, and its success in, another such interaction. Part of the increased success probably…” quote by Robert M. Sapolsky
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““Testosterone also increases confidence and optimism, while decreasing fear and anxiety.5 This explains the “winner” effect in lab animals, where winning a fight increases an animal’s willingness to participate in, and its success in, another such interaction. Part of the increased success probably reflects the fact that winning stimulates testosterone secretion, which increases glucose delivery and metabolism in the animal’s muscles and makes his pheromones smell scarier. Moreover, winning increases the number of testosterone receptors in the bed nucleus of the stria terminalis (the way station through which the amygdala communicates with the rest of the brain), increasing its sensitivity to the hormone. Success in everything from athletics to chess to the stock””

Robert M. Sapolsky

About This Quote

Source Book: Behave: The Biology of Humans at Our Best and Worst, 2017

Testosterone boosts confidence and optimism, lowers fear, and enhances performance through physiological and neural changes.

In simple terms: Hormone drives confidence and success.

Key Takeaway

Recognize hormonal influences on behavior.

Themes

biology psychology motivation

Mood

analytical curious

Type

scientific educational

When to use this quote

  • sports
  • competitive games
  • stock trading
  • personal challenges

Key Concepts

testosterone neuroendocrinology winner effect

Questions to Reflect On

  • How does testosterone affect decision‑making?
  • Can we harness its benefits without side effects?
A Different Perspective

Hormone effects vary by individual and context.

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