If we forget certain details, we don't panic:it's not (necessarily) Alzheimer's that shows up, it's just the brain that sorts it out. Professors Blake Richards and Paul Frankland came to the following conclusion after their study:the hippocampus area (memory area) creates new neurons regularly, hence the importance of our brain sorting out the details useless.
No more envying people with an elephant memory. Our brain is designed to remember things that are important to us, in order to optimize decision-making. So when we talk about forgetting, it's details from time to time but not having a memory like Dory. Synaptic connections (the little bridges that connect neurons) naturally weaken, to make room for new neurons to store new stuff. But why does our brain voluntarily forget certain things? Researchers have looked into the matter. According to them, it is because he considers this information not important enough, but he keeps the so-called general situation in stock. Keep the best to choose the best.
Forgetting some futile details is useful for learning new things. On the other hand, if we forget necessary things regularly, this is not normal, we think of consulting.