Deja vu is theorized to be a data-recollection issue, where information is stored in short-term memory before it's consciously processed -- giving you the feeli

Deja vu is theorized to be a data-recollection issue, where information is stored in short-term memory before it's consciously processed -- giving you the feeling of having experienced something before. As for activities or exercises to improve the functionality, I imagine things like meditation or even yoga could help. Though, to be honest, I'm not exactly sure how.