HOW DO YOU REMEMBER?

"What purpose is served by being able to recall a distressing occasion that we would rather forget, better than the facts that we need to learn for an exam?"

"When your ears hear a sound, they transmit it to the brain where echoic memory stores it for about 4 minutes. In that short time, the mind makes and stores a record of that sound so that you can recall it after the actual sound has stopped. This process is ongoing, whether you are aware of the sounds or not."