Psychology Expert Explains Why Nostalgia Hits Us So Hard

January 23, 2026 - 10:56

From the scents in a vintage shop to viral throwback trends, we’ve all felt the sudden, potent pull of nostalgia. Psychology expert Professor Cathy Cox explains this universal experience is far more than simple reminiscence; it’s a complex emotional state with profound psychological benefits.

According to Professor Cox, nostalgia acts as a vital emotional regulator and a source of psychological sustenance. When we recall a cherished memory—be it a childhood song, a past holiday, or a beloved old film—our brain doesn't just replay an event. It actively reconstructs it, often softening edges and highlighting positive feelings. This process triggers the release of neurotransmitters associated with pleasure and reward, providing a genuine mood boost.

Crucially, nostalgia serves as a bridge across time, strengthening our sense of identity and continuity. By connecting our present self to our past experiences, it fosters feelings of belonging and meaning. In times of stress or loneliness, mentally revisiting a comforting past chapter can provide resilience and social connectedness, even if those remembered people aren't physically present.

Ultimately, this bittersweet emotion is a testament to our brain's remarkable ability to use memory not just for recall, but for emotional comfort and personal cohesion. It’s a deeply human response that reminds us who we are by reflecting on where we’ve been.