A Must-Read for Professionals Struggling with Persistent Fatigue! A 'Stamina Strategy Guide' by a Doctor for Achieving Excellent Performance

To consistently achieve results at work, 'stamina' is essential to get through a demanding daily life. However, many people struggle with issues such as 'lingering fatigue,' 'inability to maintain focus,' and 'physical sluggishness' due to age and environmental changes.

What if you could perform at a higher level by properly controlling the stamina you already have? 'Stamina is All About How You Use It' (written by Nobuhiro Ariyoshi), to be released by Diamond, Inc. on May 20, introduces methods to maximize stamina without relying solely on exercise, based on medical evidence.

Rethinking the Assumption That 'Stamina Requires Hard Exercise'

Consider Person A, who feels heavy from the morning and lacks focus during afternoon meetings. In contrast, Person B can deliver a precise presentation even if an urgent negotiation comes up in the evening. Why is there a difference in performance quality despite having the same day? This book analyzes that reason scientifically from the perspective of 'stamina.'

The author is Nobuhiro Ariyoshi, representative of Aloha Weight & Wellness. He is a US board-certified internal medicine specialist (ABIM) and a US board-certified obesity medicine specialist (ABOM). He currently works as a hospitalist at 'The Queen's Medical Center' in Hawaii, caring for hospitalized patients. With over 18 years of clinical experience in both Japan and the US, and having handled over 10,000 inpatient cases, Ariyoshi introduces methods to properly control stamina and stabilize daily performance based on his extensive clinical experience and the latest medical knowledge.

What exactly is stamina? Many people engage in strength training or aerobic exercise at the gym to increase it. However, some cannot secure enough training time due to busy schedules, and others are unsure where to start. For these individuals, the book first breaks down stamina into three layers—'maximum stamina,' 'effective stamina,' and 'residual stamina'—and shows how to distribute it effectively to get through the day.

Furthermore, the book points out that work tasks are not the only factors that drain stamina. For example, it notes that 'high CO2 concentrations are associated with declines in cognitive function and decision-making quality,' and 'prolonged posture causes small burdens on muscles and joints, which accumulate as physical stress.' The book addresses these 'stamina-depleting factors' outside of work and explains concrete measures to reduce daily burdens.

This book is not a training manual designed to help you run a full marathon. It is a 'stamina strategy guide' focused on the stamina needed to perform at a high level at work, explaining how to grasp your remaining stamina and how to allocate it. A professional who has supported performance improvement by combining sleep, diet, exercise, and medicine presents ideas and practical methods for correctly understanding and effortlessly mastering your stamina.