HabitWorks App Shows Promise in Addressing Anxiety and Depression

Mass General Brigham investigators have developed and tested HabitWorks, a smartphone application designed to address anxiety and depression by targeting interpretation bias. A randomized trial, published in the Journal of Consulting and Clinical Psychology, reported that HabitWorks was effective in improving participants' interpretation bias, global symptom severity, and overall functioning. These findings suggest a feasible and scalable method for delivering mental health support tools.

Development and Purpose of HabitWorks

Mass General Brigham investigators developed HabitWorks as a digital intervention delivered via a smartphone app. The application aims to manage anxiety and depression through personalized exercises. Its core mechanism targets interpretation bias, which is defined as the tendency to form negative conclusions in ambiguous or uncertain situations. The app's design incorporates game-like exercises intended to help individuals gain insight into their thinking patterns.

HabitWorks targets interpretation bias – the tendency to form negative conclusions in ambiguous situations – through personalized game-like exercises.

Randomized Trial Confirms Effectiveness

A randomized trial provided evidence regarding the app's effectiveness. The study enrolled 340 adults across 44 states. Participants were randomly assigned to one of two groups:

• Intervention Group: Used the HabitWorks app for four weeks.
• Control Group: Tracked symptoms of depression and anxiety through self-assessment surveys.

After one month, participants who used HabitWorks reported significantly greater improvements in interpretation bias, overall functioning, and global mental health symptom severity compared to the control group. These results indicate that HabitWorks offers a potentially scalable method for providing mental health resources.

The randomized trial found that HabitWorks significantly improved interpretation bias, overall functioning, and global mental health symptom severity in participants.

Distinctive App Design and Approach

HabitWorks focuses on short, five-minute exercises. This design approach aims to align with typical smartphone usage patterns and facilitate integration into users' daily routines, distinguishing it from traditional interventions that might mimic longer therapy sessions.

Courtney Beard, PhD, a senior author of the study and director of the Cognition and Affect Research Education (CARE) Laboratory at McLean Hospital, noted that negative interpretations of situations can impact emotions and responses, particularly in individuals experiencing anxiety and depression. Alexandra Silverman, PhD, lead author and a clinical investigator in the CARE Laboratory, highlighted the app's short exercises as a distinctive feature in digital mental health.

The app's short, five-minute exercises are a distinctive feature, designed to fit typical smartphone usage and integrate into daily routines.

Addressing Treatment Gaps and Achieving High Retention

The development of HabitWorks addresses existing challenges in accessing evidence-based treatments for anxiety and depression, including provider shortages, high costs, and social stigma. While digital tools offer potential solutions, many existing applications in this space reportedly lack rigorous study and often experience low user retention.

HabitWorks was designed considering these limitations, with input from an advisory board comprising individuals with lived experience of anxiety and depression. The study reported high user retention rates for HabitWorks:

• 77.8% of participants were still using the app in week four.
• 84.4% completed the post-intervention assessment.

HabitWorks demonstrated remarkably high user retention, with nearly 78% of participants still active in week four, addressing a common challenge in digital mental health.