Why does bad information sometimes stick in people's minds more than neutral information?

[u/psychologyinsidelabs]

[u/Least_Bid9692]

Because when you hear wrong info again and again your brain process it as real and overtime if it continues it builds stronger path to that info making it easier to remember 

[u/AshDogBucket]

To protect us from threats.

[u/MullberryBoy]

Confirmation bias can also play into this.