Quiz
Which part of the human brain is most closely linked to managing social group size?
Chapter 1
The chemistry of connection
Chapter 2
The ripple effect
Chapter 3
The power of presence
Chapter 4
Designing a happy social circle
Ch 1 · The chemistry of connection
Quiz
What does the social brain hypothesis developed by anthropologist Robin Dunbar propose?
Fun Fact
Social brain: Anthropologist Robin Dunbar calculated that the average human can comfortably maintain stable social relationships with only about 150 people.
Quiz
How does oxytocin affect the amygdala, the brain's fear center, during social bonding?
Glossary
oxytocin (noun)
A peptide hormone secreted by the pituitary gland that facilitates childbirth, lactation, and social bonding. In 1953, biochemist Vincent du Vigneaud synthesized the hormone, earning a Nobel Prize two years later.
A peptide hormone secreted by the pituitary gland that facilitates childbirth, lactation, and social bonding. In 1953, biochemist Vincent du Vigneaud synthesized the hormone, earning a Nobel Prize two years later.
007skaty Loneliness and Survival
An ancient threat, an ancient threat, my body braces for physical harm.
Quiz
Why did our evolutionary ancestors experience loneliness as a life-or-death emergency?