I know that many folks about my age, or in the neighborhood, sometime have a few problems with their memory. It isn't that uncommon, I understand.
According to this article though, our minds are really just making room for new information. That should be somewhat comforting, I think.
The physical act of passing through a doorway is the reason why you often walk into a room and completely forget what you were doing. Because going through a door signifies the beginning or end of something, this creates an ‘event boundary’ within your mind. Basically, every time you go through a doorway, your brain starts filing away thoughts from your previous location to make room for a new group of memories in the next.
So now you know the reason why you sometimes can't remember what you entered a different room to find. It happens to me when I go through the door into my pantry sometimes. I often forget what I was looking for, and stand there like an idiot for a second until I remember.
Coffee ot on the patio this morning. Temps are headed to the mid 80s.