If you've ever found yourself standing in a room in your house and not been able to remember what the hell has brought you in there, you're not alone.
Forgetting the reason for your sudden change of location is super common, and it looks like researchers have finally cracked why so many of us have to retrace our steps in order to get a handle on the original task.
According to a recent study, a worrying number of us are completely thrown by the existence of doors in our homes, and it seems our brains begin to malfunction the moment we pass through one. (We know, we're embarrassed for us too.)
Researchers at the University of Notre Dame have dubbed it the 'boundary effect' and it basically means that upon passing though a doorway our brains automatically bring one memory to an end and allow for the beginning of another, and sometimes our original escapes us.
Investigating the theory with the help of video games, researchers put 55 participants to the test and established that people are less likely to retain information if they have to move rooms while processing it. reports The Metro.
And there you have it, doors are the enemy.