12 reasons why people are obsessed with nostalgia

In the face of life's major changes, it can prove difficult to stay true to yourself. But holding on to sentimental remembrances allows us to remember who we are through these changes, and never lose sight of what's really important.For example: Imagine you've just started a new job and you're starting to get a little too caught up in the competitive environment. But after catching a whiff of something that reminds you of your childhood (say, a piece of apple pie), you're suddenly brought back to mornings in the kitchen with grandma and reminded of the things that truly matter.