The Science of Happiness: An Experiment in Gratitude

Arcus researched the Science of Happiness as an Experiment in Gratitude in a series of panel discussions. The study delved into the profound impact of gratitude on personal happiness through a well-structured experiment. Here are key points to consider:

Introduction to Gratitude and Happiness:

The importance of gratitude in enhancing happiness is profound. It sets the stage by explaining that many people struggle with unhappiness and that practicing gratitude can be a powerful tool to combat this.

Experiment Design:

Participants are asked to think of someone who has influenced their lives positively. They then write a detailed letter expressing their gratitude to this person.

After writing the letter, participants are encouraged to call the person and read the letter to them. This step is designed to measure the immediate impact of expressing gratitude on both the giver and receiver.

Participants’ Reactions:

The study showcases various participants as they engage in the experiment. Initially, many participants feel apprehensive or unsure about the process of writing and sharing such a personal letter.
Despite initial nervousness, participants often experience a shift in emotions once they start writing, recalling positive memories and feelings associated with the person they are grateful for.
Emotional Impact:

When participants read their letters over the phone, the video captures genuine emotional reactions. Both the person expressing gratitude and the recipient often become emotional, underscoring the deep impact of sincere appreciation.

Participants report feeling a significant boost in their mood and overall happiness after the call. Many describe the experience as uplifting and heartwarming.

Scientific Insights:

The study includes insights from psychologists and experts who explain why gratitude has such a strong impact on happiness. They highlight that expressing gratitude can strengthen relationships, improve emotional well-being, and even enhance physical health.
Broader Implications:

Beyond the immediate experiment, the video suggests that regular practice of gratitude can lead to long-term improvements in happiness. It encourages viewers to incorporate gratitude into their daily routines, such as keeping a gratitude journal or regularly thanking people in their lives.
Conclusion:

The experiment’s results are clear: expressing gratitude can significantly increase personal happiness. The video ends with a call to action, urging viewers to try the experiment themselves and experience the benefits of gratitude.


The Science of Happiness: An Experiment in Gratitude report effectively demonstrates that expressing gratitude not only boosts immediate happiness but also fosters deeper emotional connections and long-term well-being. The study serves as a powerful reminder of the simple yet profound impact of gratitude on our lives.


Service coverage

The variety, breadth, and depth of the projects where Arcus can be a resource are made unique by each client’s specific needs. By providing a very small sample of projects we’ve completed, we can help you understand how and when to use our services. Visit the links below to find out more about a specific problem or opportunity you would like to address.

Below is a sample of the range of services that Arcus has provided to clients.

  • A survey of 2,350 consumers and 1,320 business leaders for feedback on sustainability trends
  • Architecting a multi-year change strategy for a Fortune 500 company
  • Mentoring a CEO on organizational change
  • Excellence transformation of a leading B2B services company
  • Creating a new sales deployment model for a healthcare company
  • Developing a position evaluation and compensation model for a professional medical association   
  • Improving services to customer segments by deepening their understanding of customer attitudes