Why does the brain mostly remember tragic, bad or embarassing memories instead of the happy ones

Question

Why does the brain mostly remember tragic, bad or embarassing memories instead of the happy ones

In: 4262

Answer 1

Doing a good job at remembering bad/scary/dangerous/negative stuff is going to keep you alive more than remembering nice things. Rinse and repeat through millions of years of evolution.

PTSD is the result of your brain labeling something “absolutely fucking never again AVOID AT ALL COST”.