PTSD

If someone has gone through something traumatic, the brain will work differently. The limbic system will hold onto those life events for two reasons.
First, the brain wants to ensure that the same event will not happen again for that person’s survival. Secondly, these life events are too big to be processed overnight, and traumas end up causing a log-jam in the brain. That is why the memory and sensation of it will remain fresh and raw. And since these memories are not being processed, it often leads to a downward spiral of anxiety, depression, and anger.