Over fifty individuals read and critiqued Fitness Beyond 50: Turn Back the Clock during its development, including a number of M.D.s and Ph.D.s in various areas of science. They — along with others who have a keen interest in fitness and health — helped ensure that the facts are correct. I’m grateful to these individuals for their time and constructive feedback.

Following are some of their comments:

“I think you have done a great job with the book. I will recommend it to everyone.”
—Gabe Mirkin, M.D., The Villages, FL

“Fitness Beyond 50 is really a prescription or blueprint on how to live a healthier life.  It should be recommended reading for everyone in midlife and beyond. It’s both enjoyable and informative, a wonderful blend of both the science of exercise and anecdotal experiences.”
—James L. Bernene M.D. MACP, Bonita Springs, FL

“At last, a really helpful, easy-to-use guide to a healthy lifestyle for those of us past the ‘middle years.’ It provides motivation, education and behaviors to enhance lifestyle changes in a fun and very engaging format. I couldn’t put it down!”
     Caroline Nielsen, Ph.D., former chair and emeritus professor, graduate program in allied health, University of Connecticut, Storrs, CT

“Even though I consider myself part of the choir, I’m extremely impressed by the incisive and apt content of Fitness Beyond 50: Turn Back the Clock. I am very active at age sixty-six and have my personal exercise agenda, but the insights in Fitness Beyond 50 have offered important suggestions that can complement and balance my approach to fitness. I sincerely recommend this book to all persons, from the non-exerciser who should hear the alarm bells ringing to the avid endurance athlete.”
Max Prola, Retired Aero-Astro Engineer, Columbia, MD

“Fitness Beyond 50 has had a profound effect on my wellness, far beyond what I imagined when I first began to read it… I remain forever grateful that this book has provided the stimulation and inspiration to help me make positive changes in my lifestyle.”
     Neale Sweet, former publisher, Down East Books, Camden, ME

“Exercise really is the ‘wonder-drug’ that can treat diabetes, hypertension, osteoporosis, elevated cholesterol and many other age related illnesses. Harry Gaines has given us the prescription, the only question is whether we will take our medicine. The chapter about exercise and the brain has anecdotes that effectively convey motivating information. If anyone can read this chapter and not want to get out, they’re crazy.”
Chris M. Aland, M.D., Orthopedic and Sports Medicine, Langhorne, PA

“There’s as much time after fifty as before, and you want this time to be healthy, productive and fun. Fitness Beyond 50 offers advice, motivation and inspirational stories of real people on how to stay fit and young, despite the passing years. Share this with those you love, it will positively change their lives!”
     —Patricia Hedley, Managing Director, global growth investor, General Atlantic Partners, Greenwich, CT

“I just turned fifty-five on Sunday. I’ve been a gym rat since about ninth grade, so Harry Gaines is preaching to the choir, but this book has reenergized me. I’m now focusing on interval training. I’ve also started to log my workouts. Both of these measures are providing additional motivation. I work on taking one or two days a week off. If, for some unforeseen reason, I can’t get my anticipated workout in, my skin feels like it wants to crawl off of my body. I guess I’m truly hooked. This opus has helped me keep it fresh. I don’t know if this will all lead to a longer life, but I‘m certain that it’s leading me to a happier one.”  
     —Russ Campion, Investment Banker, William Blair & Company, Chicago, IL

“I thought that the chapter on the brain was both informative and entertaining — with a good mix of both science and anecdote.”
     —Art Kramer, Ph.D, Director of the Beckman Institute, University of Illinois, Urbana-Champaign, IL

“I recommend this book to everyone; and frankly it would benefit younger folk. While there is a general increase in fitness today, there’s nothing I’m aware of that is as specific or as broadly relevant as the information in Fitness Beyond 50.”
     —David Walls, Retired International Investment Banker, Santa Barbara, CA

“I thought I knew a lot about aerobic fitness, the brain and motivation. After all, I’ve spent a large part of the past twenty-five years running, hiking, biking and working out in the gym, trying to stay young. But Fitness Beyond 50 is helping me get to the next level.”
     —George Owens, Retired Senior Vice President, Smith Barney, Boston, MA

“I think that Harry Gaines has written a little jewel of a book. I kept reading when I should have been doing something else. In fact, at the end of the first chapter I wanted to sign up for a fitness program! Harry Gaines writes with enthusiasm — and it’s contagious. One of his goals is to motivate people and get them to move. He achieves that, no question. This is a book that is  a good read, but it is also packed with a wealth of information.”
     —Betty Martin, Retired English Teacher, Poway, CA

“After reading Fitness Beyond 50, I changed my priorities in regard to what’s important in my life. Daily exercise now comes first. I have to force myself to take a day off every six to eight days. I do strength training more often and continue to ramp up my pace with intervals on the elliptical machine. At the supermarket I pay more attention to product label disclosures (fat, additives, and sugars). I’m anxious to share this book with friends and colleagues.”
     —John Allison, Owner, John Farley Clothiers, Newburyport, MA

“I’m a bit of a fitness and exercise freak. Yet in reading this book and in the conversations it has prompted, I’ve learned quite a bit. The tone of the writing and the level at which research is presented is engaging. A reader will be hooked before he or she knows it!”
    —Theodore L. Brown, Ph.D, Emeritus Professor of Chemistry, University of Illinois, Urbana-Champaign; senior author of the best-selling text
Chemistry: The Central Science

“Because of Harry Gaines, I have lost 10 pounds and counting, I rode my bike twice today for around 30 miles, I can lift lots more weights and am much stronger, etc. I could be upstairs pulling down a martini with some cashews, watching the latest NASCAR race and belching with contentment instead of busting my ass with exercise. But I’m not.”
    —Sandy Hackney, Retired Investment Banker,Easton, NY