[Trending] Self-care book focusing on blood flow and the spine, 'Physical condition is 90% blood flow', wins 1st place in major bookstores' weekly rankings

The book 'Physical condition is 90% blood flow: Fatigue, coldness, and aging are improved with magical spine loosening!' authored by Yumiko Kataoka, director of the skeletal adjustment salon 'Sanitas Tokyo Nakameguro' (supervised by Hitoshi Umeoka) and published by KADOKAWA Corporation (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Takeshi Natsuno) on Saturday, February 28, 2026, has garnered a huge response immediately after its release. Right after the launch, it secured the number one spot in the sales rankings in the general or practical book categories at Kinokuniya Bookstore Shinjuku Main Store, Yurindo Atre Ebisu Store, and Sanseido Bookstore Yurakucho Store.

Released just after "Blood Flow UP to Increase Smiles Day" on February 26th, this book won first place in the general or practical book categories at the following major bookstores in Tokyo:

- Kinokuniya Bookstore Shinjuku Main Store: #1 General Paperback Weekly Ranking (March 2 to March 8, 2026) - Yurindo Atre Ebisu Store: #1 Overall (March 1 to March 7, 2026) - Sanseido Bookstore Yurakucho Store: #1 Practical Books (March 2 to March 8, 2026)

Blood flow stagnation is caused by prolonged temperature fluctuations and "prolonged sitting" due to the establishment of remote work. Mr. Kataoka's "simple and immediate method," which is also extremely popular on YouTube, matches such worries specific to modern people and is supported by many readers.

This book advocates the unique health method "Bellycle Method" derived by Yumiko Kataoka, who has over 20 years of experience and a track record of treating over 40,000 patients. The physical ailments modern people suffer from, such as "persistent fatigue," "stubborn coldness," and "decline due to age." The root cause lies in the stagnation of blood flow, which plays the role of carrying oxygen and nutrients to the whole body and collecting waste products. The author focused on the "spine," which is the path of the autonomic nerves that control this blood flow. By appropriately loosening the muscles around the spine, an approach that dramatically improves full-body blood flow was established.

The introduced method consists of a 3-step "spine loosening": "loosen, circulate, and adjust." It carefully explains 25 types of stretches and massages that are so easy you won't even break a sweat, without the need for special tools or large spaces, along with easy-to-understand illustrations.

It goes beyond merely eliminating pain and stiffness, and also includes techniques for making one's impression youthful by correcting posture, as well as advice on lifestyle habits such as diet and sleep. It is a book that can be called a bible for modern people, arranging the mind and body from the root with "self-care without overdoing it."