By Dr. Priyom Bose, Ph.D. Reviewed by Lauren Hardaker Oct 10 2025 A simple two-week routine of jotting down daily work wins on a smartphone app gave Japanese employees a measurable boost in energy and enthusiasm. Study: Effects of a Smartphone-Based Positive Reflection Diary on Work Engagement Among Japanese Workers: Randomized Controlled Trial. Image credit: insta_photos/Shuttrstock.com A recent study in JMIR mHealth and uHealth evaluated the effect of a newly developed smartphone-based