This book is co-authored by James Shuichi Nakano and Takehiko Ito. Nakano, a certified professional fitness trainer recognized by the American College of Sports Medicine with over 2 million copies sold, not only coaches elite athletes like badminton doubles pair Mizuki Fujii and Reika Kakiya but also provides personalized fitness guidance for the general public. Among his clients, many are over 50 years old. Nakano highly recommends jogging for this age group. Why? Because jogging prevents memory loss and alleviates back pain. Compared to activities like golf or swimming, jogging is the exercise where one most readily feels noticeable improvement. Unlike running on treadmills or the recently popular indoor ultra-slow jogging, outdoor jogging effectively activates the autonomic nervous system.
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