The Science Behind Journaling: Can Writing Really Improve

Journaling has become one of the defining wellness trends of the social media era, with millions turning to notebooks in search of clarity and calm. But is it simply another internet fad, or does writing offer something more enduring? Research suggests that journaling can reduce anxiety, help us process difficult emotions, and create space to better understand ourselves — benefits that extend far beyond TikTok.

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Journaling: Just Another Trend?

With the boom of mental health content on TikTok in recent years, journaling has taken over our lives. What was once seen as a childlike and maybe even girly hobby is now one of the most widespread mental health practices documented online.

#Journaling has almost 3 million posts on TikTok and countless videos posted on YouTube, where content creators demonstrate and teach the art of journaling. “Journal With Me” is the most used video caption, aimed at illustrating how to start: from the perfect kind of journals — one user, for instance, recommends one with a soft cover so that it may bend easily if you “add a lot of junk” — to creative prompts, such as writing out the entire alphabet and coming up with a unique adjective for yourself that begins with each letter.

Journaling Beyond TikTok

A recent investigation led by The Pennsylvania State University examined whether spending twelve weeks journaling online could help people struggling with anxiety and other mental health challenges.

The participants, all medical patients experiencing significant anxiety, were divided into two groups: one received traditional care, while the other joined the web-based journaling program. The results were telling. Those who embraced journaling reported feeling less overwhelmed by mental distress and anxiety. They also described feeling more resilient and socially connected, and experienced fewer days when pain interfered with their daily lives.

However, the journaling intervention did not lead to improvements in every area. There was no noticeable change in depressive symptoms, overall life satisfaction, or certain types of social support, such as feeling attached to others or receiving reassurance and guidance. Nevertheless, this research suggests that guided online journaling can be a valuable tool for easing mental distress, especially anxiety, and for nurturing certain aspects of well-being. But why, exactly?

The University of Rochester Medicine affirms that journaling can support your mental health and lift your mood in several meaningful ways. First, it gives you a space to sort through your worries, fears, and challenges, making it easier to see what matters most. It also lets you track how you’re feeling each day, which can help you spot patterns, recognise triggers, and find better ways to cope. Finally, journaling creates a safe environment to practice kindness toward yourself and notice any negative thoughts or habits that might be holding you back.

How Our Mental Health Benefits From Journaling

James W. Pennebaker, in his paper “Expressive Writing in Psychological Science,” revisits his old theory around the phenomenon “expressive writing”. His study began in the early 1980s with a survey that asked nearly 80 questions and reached around 800 students. Among these questions was one that, at first glance, seemed almost random: “Before you turned seventeen, did you ever experience a traumatic sexual event?”

The impact of this single question was profound, steering the course of Pennebaker’s research. Approximately 15% of students answered “yes.” What stood out was that those who responded affirmatively also reported experiencing far more symptoms of distress and visited doctors more frequently than those who had not. Through interviews and additional studies, Pennebaker discovered that the real issue wasn’t just having experienced trauma. Instead, it was keeping those traumatic events secret that most strongly predicted a wide range of health problems.

“The first expressive writing experiment was run in the Fall of 1983 with the help of Sandy Beall, a new graduate student […] we discovered that students randomly assigned to write about traumas for 4 days, 15 minutes a day, ended up going to the student health center over the next 6 months,” writes Pennebaker.

“I developed a working theory that keeping a secret was a form of active inhibition. Concealing or holding back powerful emotions, thoughts, and behaviors, I reasoned, was itself stressful.”

— Social Psychologist James W. Pennebaker

Journaling in nature — @Ashlyn Ciara via Unsplash

Slowing Down Through Journaling

“For all good poetry is the spontaneous overflow of powerful feelings.”

— British poet William Wordsworth in his “Preface to Lyrical Ballads”

Journaling is an invitation to slow down and reclaim ownership of our emotions, sensations, and thoughts.

This mindfulness activity may have found renewed popularity through social media, but its value reaches far beyond fleeting trends. Whether it helps us untangle anxious thoughts, process difficult experiences, or simply pause long enough to notice how we truly feel, writing offers something increasingly rare: uninterrupted attention.

In a world shaped by constant notifications, endless scrolling, and the pressure to always consume more, putting pen to paper becomes a quiet act of resistance. Perhaps that is why writing continues to matter — not only because it helps us make sense of our lives, but because it invites us to slow down, reconnect with ourselves, and rediscover the value of simply being present with our own thoughts.