What will I learn about: Exposure to highly attractive or socially dominant individuals can subconsciously lower your level of commitment to your current romantic partner?

Exposure to highly attractive or socially dominant individuals can subconsciously lower your level of commitment to your current romantic partner.

What will I learn about: The disproportionately high rate of male violence is largely driven by an evolutionary need to assert social dominance and aggressively compete for highly selective female mates?

The disproportionately high rate of male violence is largely driven by an evolutionary need to assert social dominance and aggressively compete for highly selective female mates.

What will I learn about: Human prejudice is deeply rooted in our ancestors' survival instincts, particularly their need to quickly identify outgroup threats and avoid unfamiliar carriers of disease?

Human prejudice is deeply rooted in our ancestors' survival instincts, particularly their need to quickly identify outgroup threats and avoid unfamiliar carriers of disease.

What will I learn about: Our brains selectively filter massive amounts of daily social information, permanently storing only the memories that are directly tied to our survival or reproductive success?

Our brains selectively filter massive amounts of daily social information, permanently storing only the memories that are directly tied to our survival or reproductive success.

What will I learn about: Conspicuous consumption is not a byproduct of modern capitalism, but rather an ancient evolutionary strategy used primarily by men to signal status and attract mates?

Conspicuous consumption is not a byproduct of modern capitalism, but rather an ancient evolutionary strategy used primarily by men to signal status and attract mates.

Sex, Murder and the Meaning of Life

A Psychologist Investigates How Evolution, Cognition, and Complexity Are Revolutionizing Our View of Human Nature

Douglas T. Kenrick

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Categories:

Psychology Sex & Relationships

If You're Curious About These Questions...

You should listen to this audiobook

💡Why do a staggering majority of people harbor homicidal fantasies, and how does evolutionary biology explain why men act on them far more often than women?
💡How did our Stone Age ancestors' lack of medicine and fear of infectious diseases inadvertently wire the modern human brain for xenophobia?
💡What does an average-looking man wearing a Rolex reveal about the true, primal purpose behind our desire to buy extravagant, expensive things?

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Key Takeaways from Sex, Murder and the Meaning of Life

✓Exposure to highly attractive or socially dominant individuals can subconsciously lower your level of commitment to your current romantic partner.
✓The disproportionately high rate of male violence is largely driven by an evolutionary need to assert social dominance and aggressively compete for highly selective female mates.
✓Human prejudice is deeply rooted in our ancestors' survival instincts, particularly their need to quickly identify outgroup threats and avoid unfamiliar carriers of disease.
✓Our brains selectively filter massive amounts of daily social information, permanently storing only the memories that are directly tied to our survival or reproductive success.
✓Conspicuous consumption is not a byproduct of modern capitalism, but rather an ancient evolutionary strategy used primarily by men to signal status and attract mates.

Learning Tools

Reinforce what you learned from Sex, Murder and the Meaning of Life

Mind Map

Sex, Murder and the Meaning of Life

Evolutionary Foundations+

Attraction & Commitment+

Violence & Homicide+

Prejudice & Survival+

Selective Memory+

Conspicuous Consumption+

Quiz — Test Your Understanding

Question 1 of 6

According to the author's experiment, how does exposure to attractive or socially dominant people affect a person's level of commitment to their current partner?

A. Both men and women report increased commitment to their partners out of a sense of loyalty.
B. Men undervalue their commitment after seeing beautiful women, while women undervalue theirs after seeing socially dominant men.
C. Women undervalue their commitment after seeing beautiful women, while men undervalue theirs after seeing socially dominant men.
D. It has no significant effect unless the participant is already unhappy in their relationship.

Question 2 of 6

From an evolutionary perspective, what primarily explains why men account for approximately 90 percent of homicides despite both genders having homicidal fantasies?

A. Men have a higher biological predisposition to anger and lack the impulse control found in women.
B. Men engage in aggressive competition to maintain social dominance and win over highly selective women.
C. Women are more likely to suppress their homicidal fantasies due to societal conditioning and empathy.
D. Men historically hunted for food, which desensitized them to the act of killing.

Question 3 of 6

How did the experiment involving neutral and angry facial expressions demonstrate a reversal of the 'outgroup homogeneity' concept?

A. Subjects remembered neutral faces of their own group better, but remembered angry faces of the outgroup better.
B. Subjects could easily distinguish between angry faces of their own group, but not the outgroup.
C. Subjects remembered all angry faces perfectly, regardless of whether they belonged to the ingroup or outgroup.
D. Subjects forgot the faces of outgroup members entirely when they displayed angry expressions.

Question 4 of 6

What evolutionary survival instinct does the author suggest is a root cause of xenophobia and prejudice against foreigners?

A. The need to protect limited food and water resources from competing tribes.
B. The instinct to protect one's offspring from physical predators.
C. The drive to prevent the introduction of unfamiliar diseases into the community.
D. The desire to maintain cultural and linguistic purity within a social group.

Question 5 of 6

Why do we vividly remember events like a first kiss or a public tragedy, while forgetting most daily social interactions?

A. The brain allocates long-term memory storage primarily to information related to survival and reproduction.
B. Daily social interactions do not stimulate the visual cortex as strongly as sudden or dramatic events.
C. The brain can only store a maximum of five new memories per day to avoid cognitive overload.
D. Emotional events release dopamine, which is the only neurotransmitter responsible for forming memories.

Question 6 of 6

According to the text, what is the true underlying cause of 'conspicuous consumption' (buying extravagant, expensive things)?

A. The rise of American capitalistic consumerism and modern advertising.
B. An evolutionary instinct, particularly in men, to display wealth and status to attract mating partners.
C. A psychological coping mechanism to deal with the stress of modern societal expectations.
D. A cross-cultural desire to stimulate local economies and support community leaders.