About twenty years ago, a group of college students at Stanford University headed home for winter break. While they were gone, they were given the task of keeping a daily journal. In this journal, some of the students were asked to write about their most important personal values and then describe how the events of each day connected with those values.

Another group of students was simply asked to describe the positive events that happened throughout their day.

When the students returned to school after the break, the researchers discovered that those students who wrote about their personal values were healthier, experienced fewer illnesses, and had better energy and attitude than the students who merely wrote about the positive events in their lives.

As time has gone on, these findings have been replicated in nearly a hundred additional studies. In fact, according to the book The Upside of Stress by Stanford professor Kelly McGonigal:

“It turns out that writing about your values is one of the most effective psychological interventions ever studied. In the short term, writing about personal values makes people feel more powerful, in control, proud, and strong. It also makes them feel more loving, connected, and empathetic toward others. It increases pain tolerance, enhances self-control, and reduces unhelpful rumination after a stressful experience. In the long term, writing about values has been shown to boost GPAs, reduce doctor visits, improve mental health, and help with everything from weight loss to quitting smoking and reducing drinking. It helps people persevere in the face of discrimination and reduces self-handicapping. In many cases, these benefits are a result of a one-time mindset intervention. People who write about their values once, for ten minutes, show benefits months or even years later.” — Kelly McGonigal

But why?

The Power of Personal Values

Why would such a simple action like writing about your personal values deliver such incredible results?

Researchers believe that one core reason for this is that journaling about your personal values and connecting them to the events in your life helps to reveal the meaning behind stressful events in your life. Sure, taking care of your family or working long hours on a project can be draining, but if you know why these actions are important to you, then you are much better equipped to handle that stress.

In fact, writing about how our day-to-day actions match up with our deepest personal values can mentally and biologically improve our ability to deal with stress. In McGonigal’s words, “Stressful experiences were no longer simply hassles to endure; they became an expression of the students’ values… small things that might otherwise have seemed irritating became moments of meaning.”

This article was originally published on JamesClear.com