It is normal to experience some forgetfulness, but there are several common types of memory problems:
| Problem | Description |
|---|---|
| Transience | Natural fading of memories over time. |
| Absentmindedness | Failures in attention that lead to forgetting. |
| Blocking | Temporary inability to retrieve information (tip-of-the-tongue phenomenon). |
| Misattribution | Remembering information correctly but with wrong context. |
| Suggestibility | Memories altered by misleading information after the event. |
| Bias | Current feelings or beliefs influence memories. |
| Persistence | Unwanted memories, such as traumatic events, that persist. |
Severe memory problems, such as those caused by Alzheimer's disease, result from brain damage and progressively impair cognitive functions.
