Psychology
Prosocial Behavior: The Psychology Behind Helping Others
Quick fact
The famous case of Kitty Genovese, who was murdered in 1964 while dozens of witnesses reportedly did nothing, sparked research on the 'bystander effect'—showing that people are less likely to help in a crowd due to diffusion of responsibility.
Why this is interesting
You're walking down a busy street when someone trips and drops their groceries. Would you stop to help? What if the street is crowded? What if you're late? The surprising truth is that the number of people around might make you less likely to help—why?