Your brain loves shortcuts. Sorting people into groups saves time and energy, but it can also create unfair labels.
Stereotypes are beliefs about a whole group ("all gamers are lazy," "people from that country are unfriendly"). They are often wrong because real humans vary hugely.
Prejudice is a feeling: disliking or distrusting a group without knowing individuals.
Discrimination is action: treating people worse because of group membership. Understanding where bias comes from is the first step to reducing it. Even kind people can carry hidden bias they never chose on purpose.
⚡ DID YOU KNOW?
Psychologist Gordon Allport explained prejudice deeply in his 1954 book The Nature of Prejudice. He showed how stereotypes, fear, and group rivalry feed unfair treatment.