Our brain size appears to set to a limit of about _______ people with whom we can have stable and meaningful relationships.
A) 10
B) 50
C) 150
D) 300

Question

Quizplus · Accepted Answer

This is known as the Dunbar's number, which suggests that humans can maintain stable and meaningful relationships with around 150 individuals. This theory is based on the correlation between the size of an individual's neocortex (a part of the brain responsible for complex cognitive processing) and their social group size. Therefore, option C (150) is the correct answer.

Our Brain Size Appears to Set to a Limit of About