Every so often (more now that I am getting older), I feel a twinge of …. something … when I think of the past. Maybe it’s when I’m thinking of an old flame, remembering an experience from childhood, or reminiscing about a carefree moment in my 20s: Along with the memory comes a feeling that is akin to emotional pain. Yet, it’s not altogether unpleasant–there is happiness mixed with the sadness. This is nostalgia.

What Is Nostalgia?

According to Wikipedia, the word nostalgia comes from a Greek compound of nóstos (homecoming) and álgos (pain or ache) and was coined by a 17th-century medical student to describe a psychological disorder displayed by Swiss mercenaries at war away from home. At that time, nostalgia was considered a serious and even possibly fatal (due to suicide) form of extreme homesickness. It was seen as a form of melancholy, a term used to define what we now call clinical depression.

Nostalgia is not just the act of remembering the past, it also involves yearning for it. The yearning can feel both “positive” and “negative,” although I don’t like to label emotions in this way.

As I said, I have noticed that I experience nostalgia more often now that I am in my 50s than I did when I was younger. It seems that nostalgia is a condition more common in older age–it’s rarer for children, teens, and young adults to wish to go back to an earlier time in their lives than it is for older people. This makes sense, as we begin to experience the physical decline of aging and often must take on more responsibility (e.g., career, family) as we age so may look back on our younger, stronger, healthier, and perhaps more carefree selves.

What Is Nostalgia For?

One of the aspects of nostalgia I have noticed is that it has a physical sensation to it–it’s not just emotional or cognitive. I feel it most in my chest and stomach. It’s hard to define specifically, but it’s similar to a sad feeling one might get watching an emotional movie. So, it definitely has a flavor of sorrow, but it also feels sort of good. And, in fact, the current view on nostalgia is that it has some emotional and cognitive benefits: some psychological experts feel that experiencing nostalgia can improve mood, increase social connectedness, enhance positive self-regard, promote self-growth, and provide existential meaning.

However, some nostalgia can be personally or socially harmful. A negative form of nostalgia is having an overly romantic and idealized view of the past; for example, some Americans consider the 40s and 50s “the good old days” because the economy was strong and many middle-class white families were doing well. However, this sort of nostalgia is a form of denial, overlooking the fact that this time in U.S. history also involved the social oppression of and barriers to people of color, women, and many others. It can also be a form of privilege or insular thinking–only looking at one’s own past in a bubble and not in the context of larger society.

Being blind to the layers of the past hinders us from moving forward and improving our social systems. And using denial and avoidance of our own difficult past experiences or emotions can result in unresolved feelings and emotional numbing or stunting.

Nostalgia Triggers

I felt some nostalgia this holiday season, the first since my mother’s death and the first I have not spent back East with family, due to COVID making travel risky. I’ve also had some strong nostalgic feelings when looking at old photos, hearing old songs, or thinking about past fun times and trips. It’s such a strange mix of feelings.

Certain smells and songs can be powerful nostalgia triggers. One reason smell is so evocative is that it’s the sense with the most direct path into the brain. Also, the region of the brain that processes smell is closely connected to the regions that are involved with memory and emotion, the hippocampus and amygdala.

And I’m sure we’ve all had the experience of music waking up strong, vivid memories. Various studies in the late 2000s and early 2010s found that listening to music engages broad neural networks in the brain, including brain regions responsible for motor movement, emotions, and creativity. Like the brain regions responsible for smell, those processing music are connected to the areas involved with feelings and memory.

Looking Ahead

Today is New Year’s Day 2021, the start of a (hopefully) better year after a very painful, challenging, and anxiety-provoking 2020. It’s a natural time to reflect on the past as well as look to the future. Today, I’ve been feeling a little nostalgic about my mom, about all the things I used to enjoy doing that were not possible or had to be seriously altered in 2020 (e.g., getting together with friends or family, going to restaurants or bars, seeing live performances, visiting museums and galleries, traveling), and about other memories. Allowing ourselves to feel nostalgia and to reflect is important. In addition to the benefits nostalgia can bring our minds and hearts, reflection gives us the chance to take stock and decide what we want to carry with us into a new year and what we want to let go of or alter.

Wishing all a happy New Year and a better year ahead!