As we age, it’s normal to experience more frequent instances of memory loss. Some common symptoms of normal memory loss include transience, when the brain forgets some memories over time, and absentmindedness, where you may forget something because you weren’t focused on it. Other factors can also contribute to normal memory loss, such as depression and other mental health issues. Memory loss that involves the following can be cause for concern and should be addressed by a doctor: 1) Forgetting important information, like names. 2) Being extremely disoriented in unfamiliar environments. 3) Major personality changes like aggressiveness or impulsivity.