https://thenextweb.com/syndication/2019/11/21/heres-why-memories-come-flooding-back-when-you-visit-places-from-your-past/

We all know our memories get worse as time goes on – your recollection of what you did yesterday is probably a lot better than for the same day three years ago.

And yet we often have moments where old and seemingly forgotten memories pop back into mind. Perhaps you have visited your childhood home, walked into your old bedroom, and been hit with a wave of nostalgia. What triggers this rush of memories, and how can you suddenly remember things you may not have thought about for decades?