“A brain circuit has been found that allows us to forget fear and anxiety.
The brain is also adept at knowing when an initially threatening or startling stimulus turns out to be harmless or resolved. But sometimes this system fails and unpleasant associations stick around, a malfunction thought to be at the root of post-traumatic stress disorder (PTSD). New research has identified a neuronal circuit responsible for the brain’s ability to purge bad memories, findings that could have implications for treating PTSD and other anxiety disorders…” Read Full Article – Source: How the Brain Purges Bad Memories – Scientific American
https://www.scientificamerican.com/article/how-the-brain-purges-bad-memories/