Many of us enjoy writing in a diary, reading autobiographies, or nostalgically reflecting with others about past times.
Why is remembering our past so important? Are there downsides? And what can we do if dwelling on the past bothers us?
Memories Make Us Human
Over several decades, researchers have shown that remembering your past is fundamental to being human, and has
four important roles.
1. Memories help form our identity
Our memories give us a sense of personal continuity—a consistent sense of self moving through time. They provide important details of who we are and who we would like to be.
2. Memories help us solve problems
Memories offer us potential solutions to current problems and help guide and direct us when solving them.
3. Memories make us social
Personal memories are essential for social interactions. Being able to recall personal memories provides important material when making new friends, forming new relationships, and maintaining ones we already have.
4. Memories help us regulate our emotions
Our memories provide examples of similar situations we’ve been in before. This allows us to reflect on how we managed that emotion before and what we can learn from that experience.
Such memories can also help us manage strong negative emotions. For example, when someone is feeling sad, they can take time to dwell on a positive memory
to improve their mood.
Memories Help Us Function in Our Wider Society
Dwelling on our memories not only helps us as individuals, it also allows us to operate in our socio-cultural context, just as our society and culture influence the way we remember our past.
For instance, in Western individualistic cultures, people tend to recall memories that are long, specific, detailed, and focus on the individual.
By contrast, in East Asian cultures, people tend to recall more general memories focusing on social interactions and significant others. Researchers have seen these differences between
children and adults.
Parents from Western cultures focus more on the child and the child’s thoughts and emotions than East Asian parents do. So, there are even cultural differences in the ways we teach our children to remember the past.
People from Western individualistic cultures tend to recollect specific unique memories that reaffirm someone’s uniqueness, a value emphasized in Western cultures.
By contrast, in East Asian cultures, memories function to assist with relatedness and social connection, a value emphasized in East Asian cultures.
Memories and Ill Health
As remembering the past plays such a crucial role in how we function as humans, it is unsurprising that disruptions in how we remember arise in several psychological disorders.
People with depression, for instance, tend to remember
more negative personal memories and fewer positive personal memories than those without depression. For example, someone with depression may remember failing an exam rather than remembering their academic successes.
People with depression also
have great difficulty remembering something from a specific time and place, for instance, “I really enjoyed going to Sam’s party last Thursday.” Instead, they provide memories of general experiences, for instance, “I like going to parties.”
We have found that people with depression also tend to structure their life story
differently and report more negative life stories. They also tend to remember periods of their life, such as going to university, as either distinctly positive or negative (rather than a combination of both).
Disturbances in memory are also
the hallmarks of post-traumatic stress disorder. This is when unwanted, distressing personal memories of the trauma spontaneously pop into the mind.
People with anxiety disorders also tend to have
biases when remembering their personal past. For instance, all of us, unfortunately, experience social blunders from time to time, such as tripping while getting onto a bus or spilling a drink at a party. However, people with social anxiety are more likely to be
consumed with feelings of embarrassment and shame when remembering these experiences.
Finally, an excessive, repetitive dwelling on your past without generating solutions can be unhelpful. It can result in emotional distress and, in extreme instances, emotional disorders such as
depression, anxiety, and
post-traumatic stress disorder.
How to Resolve
If dwelling on the past bothers you, these practical tips can help.
Set aside a certain time of the day for your memories. You could write in a diary or write down your worries.
Writing about important personal experiences in an emotional way for as little as 15 minutes a day can improve your mental and physical health.
Practice remembering specific positive memories from your past. This can allow you to
engage differently with your memories and gain a new perspective on your memories.
Learn and practice mindfulness strategies. Instead of dwelling on painful memories, a focus on the present moment (such as attending to your breath, focusing on what you can currently see, smell, or hear) can help break a negative cycle.
When dwelling on past memories, try being proactive and generating ideas to solve problems rather than just being passive.
See your GP or health practitioner if you’re distressed about dwelling on your past.
Laura Jobson is a senior lecturer in clinical psychology at Monash University in Australia. This article was first published on The Conversation. 
