'Datsu Sumaho Jutsu' (Smartphone Detoxing Skill) to be released on May 13th: 14 years of life wasted due to 'smartphone addiction'?! Learn 'how to boost concentration' derived from 5 million behavioral data, useful for work and study!

Daisuke Toda's new book, "Datsu Sumaho Jutsu: No More Days of 'Doing Nothing and the Day is Over'", by the developer of a concentration-enhancing app with over 10 million cumulative downloads, will be released by Diamond Inc. on May 13th.

"Datsu Sumaho Jutsu: No More Days of 'Doing Nothing and the Day is Over'" by Daisuke Toda, published by Diamond Inc.

Eliminate 'Mindless Smartphone Use' that Wastes Your Life! Introducing Highly Effective Methods to Enhance Concentration

Have you ever started work or study with a strong resolve, only to find yourself peeking at your smartphone and losing several hours without realizing it? While smartphones have made information and entertainment constantly accessible, an increasing number of people struggle to maintain concentration. According to one survey, a staggering 81.6% of respondents answered "often" to the question, "Do you find yourself looking at your smartphone too much?" (*1). Furthermore, the average daily smartphone usage is said to be about 5 hours, which, when calculated over a lifetime, amounts to a loss of a whopping 14 years to smartphone use. Imagine how much progress we could make in our lives if we could break free from this 'smartphone addiction' that erodes our concentration and dedicate that time to self-improvement.

This book, "Datsu Sumaho Jutsu," addresses this uniquely modern problem by revealing "methods to naturally enhance concentration without relying on smartphones." The author, Daisuke Toda, is an entrepreneur who has researched behavioral change based on data and behavioral science, and has been involved in developing apps that boost self-management abilities. His developed apps have surpassed 10 million cumulative downloads, promoting 'positive behavioral change' for many users. This book analyzes the commonalities of "people who can concentrate" based on over 5 million behavioral data points and systematizes how to replicate these traits. Based on the fact that concentration can be drawn out through mechanisms, not just willpower, it clearly introduces "thinking methods to prevent procrastination" and "mechanisms to habituate concentration" in an easily actionable way for anyone.

This book is an opportunity for business professionals and students struggling with "lack of motivation" or "difficulty concentrating" to change their daily habits.

Table of Contents Foreword: What Is Not Coincidental Prologue: He Thought It Would 'Change His Life' Chapter 1: Inside the Mind of a Procrastinator Chapter 2: Utilizing 'Reason Cannot Overcome Instinct' Chapter 3: Don't Sit at Your Desk Without Rules Chapter 4: The Pitfall Everyone Falls Into So Perfectly Chapter 5: By Default Settings, People Become Addicted to Smartphones Epilogue: The Revelation Afterword: A Story That's Utterly Realistic, and Just a Little Bright

"Datsu Sumaho Jutsu: No More Days of 'Doing Nothing and the Day is Over'" Author: Daisuke Toda Price: 1,760 yen (tax included) Release Date: May 13, 2026 Publisher: Diamond Inc. Format: B6-sized, 256 pages URL: https://www.amazon.co.jp/dp/4478120153/

Author Profile: Daisuke Toda Born in Yamagata Prefecture. Joined Dentsu Isobar (now Dentsu Digital) as a new graduate. After working as a data analyst, he founded bondavi Inc. He works on developing apps that encourage positive human behavior based on data and behavioral science insights. All apps are provided ad-free and free of charge, operated by voluntary user donations. "Jizoku Suru Gijutsu (The Art of Persistence)" and "Shuchu (Concentration)" became leading hits in Japan, with cumulative downloads exceeding 10 million. Author of "Jizoku Suru Gijutsu."

*1 Based on survey results on page 3 of this book (bondavi research) Q: Do you find yourself looking at your smartphone too much? Respondents: People using smartphones with default settings (no special measures) Number of respondents: 613 Period: 2025/9/7 – 12/8

・Images and photos within the release are for reporting purposes related to this book only. Keywords: