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SoBrief
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Friendship
by Lydia Denworth • 2020
Loneliness kills like smoking. The biology of friendship, from macaques to MRI, reveals why.
3.64
794
Friendship Summary
Friendship 96%
Loneliness kills like smoking. The biology of friendship, from macaques to MRI, reveals why.
by Lydia Denworth 2020
3.64
794 ratings
Blueprint
by Nicholas A. Christakis • 2019
Goodness is our default setting. Evolution built us for love, friendship, and cooperation.
3.95
2k+
Blueprint Summary
Blueprint 95%
Goodness is our default setting. Evolution built us for love, friendship, and cooperation.
by Nicholas A. Christakis 2019
3.95
2k+ ratings
Why We Love
by Anna Machin • 2022
Love is a survival system, not a feeling. Romantic love is its rarest and strangest form.
3.72
205
Why We Love Summary
Why We Love 95%
Love is a survival system, not a feeling. Romantic love is its rarest and strangest form.
by Anna Machin 2022
3.72
205 ratings
How Many Friends Does One Person Need?
by Robin I.M. Dunbar • 2010
Your brain can manage about 150 relationships. Gossip, art, and religion are the overflow.
3.50
646
How Many Friends Does One Person Need? Summary
How Many Friends Does One Person Need? 94%
Your brain can manage about 150 relationships. Gossip, art, and religion are the overflow.
by Robin I.M. Dunbar 2010
3.50
646 ratings
Solving Modern Problems With a Stone-Age Brain
by Douglas T. Kenrick • 2022
Your brain is built for the Stone Age; the modern world has learned every button to push.
3.83
46
Solving Modern Problems With a Stone-Age Brain Summary
Solving Modern Problems With a Stone-Age Brain 94%
Your brain is built for the Stone Age; the modern world has learned every button to push.
by Douglas T. Kenrick 2022
3.83
46 ratings
The Science of Love
by Robin I.M. Dunbar • 2012
Love, heartbreak, and religious ecstasy run on the same ancient neural circuitry. Here's how.
3.47
333
The Science of Love Summary
The Science of Love 94%
Love, heartbreak, and religious ecstasy run on the same ancient neural circuitry. Here's how.
by Robin I.M. Dunbar 2012
3.47
333 ratings
The Social Leap
by William Von Hippel • 2018
We're savannah apes in skyscrapers: cooperative, self-deceiving, and never satisfied for long.
4.23
2k+
The Social Leap Summary
The Social Leap 94%
We're savannah apes in skyscrapers: cooperative, self-deceiving, and never satisfied for long.
by William Von Hippel 2018
4.23
2k+ ratings
Why Brains Need Friends
by Ben Rein • 2025
Your brain is built to connect, then sabotages every attempt. The neuroscience of fixing it.
3.95
502
Why Brains Need Friends Summary
Why Brains Need Friends 94%
Your brain is built to connect, then sabotages every attempt. The neuroscience of fixing it.
by Ben Rein 2025
3.95
502 ratings
The Human Story
by Robin I.M. Dunbar • 2004
Gossip, laughter, gods: how the social brain made us human, and the number behind it.
3.87
334
The Human Story Summary
The Human Story 93%
Gossip, laughter, gods: how the social brain made us human, and the number behind it.
by Robin I.M. Dunbar 2004
3.87
334 ratings
The Human Swarm
by Mark W. Moffett • 2019
Societies don't run on cooperation. They run on identity markers strangers can spot at a glance.
3.65
466
The Human Swarm Summary
The Human Swarm 93%
Societies don't run on cooperation. They run on identity markers strangers can spot at a glance.
by Mark W. Moffett 2019
3.65
466 ratings
WARRIORS AND WORRIERS
by BENENSON • 2014
Men and women evolved to survive different threats, producing two human natures visible from birth.
4.09
167
WARRIORS AND WORRIERS Summary
WARRIORS AND WORRIERS 93%
Men and women evolved to survive different threats, producing two human natures visible from birth.
by BENENSON 2014
4.09
167 ratings
Human Instinct
by Robert Winston • 2002
Your brain was built for the savannah. Why ancient instincts still steer every choice you make.
4.00
464
Human Instinct Summary
Human Instinct 93%
Your brain was built for the savannah. Why ancient instincts still steer every choice you make.
by Robert Winston 2002
4.00
464 ratings
Age of Empathy
by Frans de Waal • 2009
Empathy isn't a human invention. It's an animal legacy, and a primatologist has the evidence.
4.00
3k+
Age of Empathy Summary
Age of Empathy 93%
Empathy isn't a human invention. It's an animal legacy, and a primatologist has the evidence.
by Frans de Waal 2009
4.00
3k+ ratings
Why Is Sex Fun?
by Jared Diamond • 1997
Why human mating is nature's oddest: hidden ovulation, menopause, and the real reason men hunt.
3.71
7k+
Why Is Sex Fun? Summary
Why Is Sex Fun? 93%
Why human mating is nature's oddest: hidden ovulation, menopause, and the real reason men hunt.
by Jared Diamond 1997
3.71
7k+ ratings
Social
by Matthew D. Lieberman • 2013
Your brain treats rejection like a broken bone. Connection is a biological need, not a luxury.
4.07
3k+
Social Summary
Social 93%
Your brain treats rejection like a broken bone. Connection is a biological need, not a luxury.
by Matthew D. Lieberman 2013
4.07
3k+ ratings
The Social Instinct
by Nichola Raihani • 2021
Cooperation built life from genes to nations. The bill always lands on someone else.
3.90
670
The Social Instinct Summary
The Social Instinct 93%
Cooperation built life from genes to nations. The bill always lands on someone else.
by Nichola Raihani 2021
3.90
670 ratings
A Natural History of Human Thinking
by Michael Tomasello • 2014
Apes think alone. We think together. The two-step evolution that made the difference.
3.99
207
A Natural History of Human Thinking Summary
A Natural History of Human Thinking 93%
Apes think alone. We think together. The two-step evolution that made the difference.
by Michael Tomasello 2014
3.99
207 ratings
The Ape that Understood the Universe
by Steve Stewart-Williams • 2018
You don't own your desires. They belong to your genes and the ideas colonizing your mind.
4.23
2k+
The Ape that Understood the Universe Summary
The Ape that Understood the Universe 93%
You don't own your desires. They belong to your genes and the ideas colonizing your mind.
by Steve Stewart-Williams 2018
4.23
2k+ ratings
Why We Lie
by David Livingstone Smith • 2004
Self-deception is an evolutionary tool: the lies you believe are the ones you sell best.
3.62
260
Why We Lie Summary
Why We Lie 93%
Self-deception is an evolutionary tool: the lies you believe are the ones you sell best.
by David Livingstone Smith 2004
3.62
260 ratings
Why Beautiful People Have More Daughters
by Alan S. Miller • 2006
The mating dance, boardroom gambles, and prayer: all driven by a brain built for the savannah.
3.56
2k+
Why Beautiful People Have More Daughters Summary
Why Beautiful People Have More Daughters 93%
The mating dance, boardroom gambles, and prayer: all driven by a brain built for the savannah.
by Alan S. Miller 2006
3.56
2k+ ratings
Sex, Murder, and the Meaning of Life
by Douglas T. Kenrick • 2011
What if your brain is not one self but a committee, and the mating module runs most meetings?
3.56
672
Sex, Murder, and the Meaning of Life Summary
Sex, Murder, and the Meaning of Life 93%
What if your brain is not one self but a committee, and the mating module runs most meetings?
by Douglas T. Kenrick 2011
3.56
672 ratings
The Truth About Trust
by David DeSteno • 2014
Trust isn't a virtue; it's biology. Power, money, or a stressful day can turn anyone into a cheat.
3.74
314
The Truth About Trust Summary
The Truth About Trust 93%
Trust isn't a virtue; it's biology. Power, money, or a stressful day can turn anyone into a cheat.
by David DeSteno 2014
3.74
314 ratings
Origins of Human Communication
by Michael Tomasello • 1999
Language didn't start with a code. It started with pointing, pantomime, and the urge to help.
4.14
299
Origins of Human Communication Summary
Origins of Human Communication 93%
Language didn't start with a code. It started with pointing, pantomime, and the urge to help.
by Michael Tomasello 1999
4.14
299 ratings
This View of Life
by David Sloan Wilson • 2019
Social Darwinism got Darwin wrong. His real theory: cooperation, not competition, built humanity.
3.96
372
This View of Life Summary
This View of Life 93%
Social Darwinism got Darwin wrong. His real theory: cooperation, not competition, built humanity.
by David Sloan Wilson 2019
3.96
372 ratings
Born to Be Good
by Dacher Keltner • 2009
Darwin argued sympathy, not self-interest, shaped human evolution. The biology now proves him right.
3.57
729
Born to Be Good Summary
Born to Be Good 92%
Darwin argued sympathy, not self-interest, shaped human evolution. The biology now proves him right.
by Dacher Keltner 2009
3.57
729 ratings
Minds Make Societies
by Pascal Boyer • 2018
Nations clash, gods multiply, and families splinter for reasons your conscious mind never sees.
3.90
397
Minds Make Societies Summary
Minds Make Societies 92%
Nations clash, gods multiply, and families splinter for reasons your conscious mind never sees.
by Pascal Boyer 2018
3.90
397 ratings
The Ten Types of Human
by Dexter Dias • 2018
Your brain runs ten minds. One feels another's pain. One learns to enjoy causing it.
4.16
2k+
The Ten Types of Human Summary
The Ten Types of Human 92%
Your brain runs ten minds. One feels another's pain. One learns to enjoy causing it.
by Dexter Dias 2018
4.16
2k+ ratings
How We Became Human
by Tim Dean • 2021
Your sense of right and wrong evolved for the Stone Age. It's time for an upgrade.
3.90
114
How We Became Human Summary
How We Became Human 92%
Your sense of right and wrong evolved for the Stone Age. It's time for an upgrade.
by Tim Dean 2021
3.90
114 ratings
Cognitive Gadgets
by Cecilia Heyes • 2018
Imitation and language are not instincts. They are cultural tools, rebuilt in every childhood.
3.75
183
Cognitive Gadgets Summary
Cognitive Gadgets 92%
Imitation and language are not instincts. They are cultural tools, rebuilt in every childhood.
by Cecilia Heyes 2018
3.75
183 ratings
The Laws of Connection
by David Robson • 2024
Social bonds predict longevity better than diet or exercise. The skills to build them are learnable.
3.74
434
The Laws of Connection Summary
The Laws of Connection 92%
Social bonds predict longevity better than diet or exercise. The skills to build them are learnable.
by David Robson 2024
3.74
434 ratings
How the Mind Changed
by Joseph Jebelli • 2022
The human brain didn't just get bigger. It learned to cook, gossip, and hallucinate a self.
4.06
348
How the Mind Changed Summary
How the Mind Changed 92%
The human brain didn't just get bigger. It learned to cook, gossip, and hallucinate a self.
by Joseph Jebelli 2022
4.06
348 ratings
Decoding Love
by Andrew S. Trees • 2009
Why your genes, your nose, and an invisible market make your romantic decisions before you do.
3.64
329
Decoding Love Summary
Decoding Love 92%
Why your genes, your nose, and an invisible market make your romantic decisions before you do.
by Andrew S. Trees 2009
3.64
329 ratings
It's Not You, It's Biology.
by Joe Quirk • 2008
Men and women want different things because sperm and eggs have conflicting goals.
4.04
583
It's Not You, It's Biology. Summary
It's Not You, It's Biology. 92%
Men and women want different things because sperm and eggs have conflicting goals.
by Joe Quirk 2008
4.04
583 ratings
The Social Conquest of Earth
by Edward O. Wilson • 2012
Human virtue and human genocide come from the same evolutionary force, and it's not kin selection.
4.02
4k+
The Social Conquest of Earth Summary
The Social Conquest of Earth 92%
Human virtue and human genocide come from the same evolutionary force, and it's not kin selection.
by Edward O. Wilson 2012
4.02
4k+ ratings
The Bonobo and the Atheist
by Frans de Waal • 2013
Chimps console, capuchins reject unfair pay; morality was ancient before religion claimed it.
4.15
6k+
The Bonobo and the Atheist Summary
The Bonobo and the Atheist 92%
Chimps console, capuchins reject unfair pay; morality was ancient before religion claimed it.
by Frans de Waal 2013
4.15
6k+ ratings
The Origins of Virtue
by Matt Ridley • 1997
Society did not tame our selfish instincts. Selfish genes built our capacity for cooperation.
4.03
4k+
The Origins of Virtue Summary
The Origins of Virtue 92%
Society did not tame our selfish instincts. Selfish genes built our capacity for cooperation.
by Matt Ridley 1997
4.03
4k+ ratings
Plays Well with Others
by Eric Barker • 2022
Love mimics mental illness, your people radar barely works, and the fix is stronger signals.
4.09
3k+
Plays Well with Others Summary
Plays Well with Others 92%
Love mimics mental illness, your people radar barely works, and the fix is stronger signals.
by Eric Barker 2022
4.09
3k+ ratings
The Moral Animal
by Robert Wright • 1994
Our noblest impulses and our ugliest desires share one source: millions of years of evolution.
4.08
12k+
The Moral Animal Summary
The Moral Animal 92%
Our noblest impulses and our ugliest desires share one source: millions of years of evolution.
by Robert Wright 1994
4.08
12k+ ratings
Mating Intelligence Unleashed
by Glenn Geher • 2012
Evolution wired your brain for courtship: the hidden skills that run your love life.
3.70
210
Mating Intelligence Unleashed Summary
Mating Intelligence Unleashed 92%
Evolution wired your brain for courtship: the hidden skills that run your love life.
by Glenn Geher 2012
3.70
210 ratings
Humanimal
by Adam Rutherford • 2016
We alone compose symphonies. Yet every supposedly unique human trait exists elsewhere in nature.
3.83
3k+
Humanimal Summary
Humanimal 92%
We alone compose symphonies. Yet every supposedly unique human trait exists elsewhere in nature.
by Adam Rutherford 2016
3.83
3k+ ratings
Conscience
by Patricia S. Churchland • 2019
Our conscience grew out of the brain's drive to care, not from God or reason.
3.78
442
Conscience Summary
Conscience 92%
Our conscience grew out of the brain's drive to care, not from God or reason.
by Patricia S. Churchland 2019
3.78
442 ratings
The Origin of Language
by Madeleine Beekman • 2025
The demands of keeping helpless infants alive, not hunting or gossip, gave us language.
3.70
201
The Origin of Language Summary
The Origin of Language 92%
The demands of keeping helpless infants alive, not hunting or gossip, gave us language.
by Madeleine Beekman 2025
3.70
201 ratings
Our Kind
by Marvin Harris • 1989
Built for a lost world: why we crave, worship, and wage war, from an anthropologist.
4.17
672
Our Kind Summary
Our Kind 92%
Built for a lost world: why we crave, worship, and wage war, from an anthropologist.
by Marvin Harris 1989
4.17
672 ratings
Consuming Instinct
by Gad Saad • 2011
Your cravings for burgers, Ferraris, and porn all trace back to the same evolutionary wiring.
3.70
755
Consuming Instinct Summary
Consuming Instinct 92%
Your cravings for burgers, Ferraris, and porn all trace back to the same evolutionary wiring.
by Gad Saad 2011
3.70
755 ratings
Invisible Rivals
by Jonathan R Goodman • 2025
We compete constantly without knowing it; language is the weapon that hides the battle.
3.76
33
Invisible Rivals Summary
Invisible Rivals 92%
We compete constantly without knowing it; language is the weapon that hides the battle.
by Jonathan R Goodman 2025
3.76
33 ratings
Mean Genes
by Terry Burnham • 2000
Overeating, overspending, cheating: your genes want all three. The science of overriding them.
3.85
1k+
Mean Genes Summary
Mean Genes 92%
Overeating, overspending, cheating: your genes want all three. The science of overriding them.
by Terry Burnham 2000
3.85
1k+ ratings
The Science of Sin
by Jack Lewis • 2018
Lust, greed, and wrath are not moral failures. They're brain states, and that changes everything.
3.60
230
The Science of Sin Summary
The Science of Sin 91%
Lust, greed, and wrath are not moral failures. They're brain states, and that changes everything.
by Jack Lewis 2018
3.60
230 ratings
Connected
by Nicholas A. Christakis • 2008
Your weight, your vote, your happiness: all shaped by strangers three handshakes away.
3.74
4k+
Connected Summary
Connected 91%
Your weight, your vote, your happiness: all shaped by strangers three handshakes away.
by Nicholas A. Christakis 2008
3.74
4k+ ratings
The Human Zoo
by Desmond Morris • 1969
Urban anxiety, status obsession, and self-destruction: a zoologist traces them back to captivity.
4.00
3k+
The Human Zoo Summary
The Human Zoo 91%
Urban anxiety, status obsession, and self-destruction: a zoologist traces them back to captivity.
by Desmond Morris 1969
4.00
3k+ ratings
Are We Smart Enough to Know How Smart Animals Are?
by Frans de Waal • 2016
We tested animal minds as defective humans. Once we redesigned the tests, they stopped failing.
3.97
17k+
Are We Smart Enough to Know How Smart Animals Are? Summary
Are We Smart Enough to Know How Smart Animals Are? 91%
We tested animal minds as defective humans. Once we redesigned the tests, they stopped failing.
by Frans de Waal 2016
3.97
17k+ ratings
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