About Great Healthy
At Great Healthy, we believe that lasting wellness begins with the right knowledge. That’s why our mission is to turn the science of nutrition, sleep, and overall health into simple, practical, and expert-written eBooks you can trust.
We don’t believe in quick fixes. We provide real, sustainable solutions—built on experience, clinical insight, and a genuine commitment to helping you make meaningful lifestyle changes that last.
Meet the Experts Behind the Books

Dr. Richard Renner – Retired Cardiologist
After a 30-year career in cardiology, Dr. Renner now dedicates his time to educating the public on preventive health and lifestyle medicine. He is the author of:
📘 Hack Your Sleep
📘 Heart Health Secrets
Dr. Lane’s writing reflects his deep knowledge of the heart-body connection, offering insights into stress reduction, sleep improvement, and cardiovascular wellness.

Dr. Lina Hart – Certified Nutrition Expert
With over 15 years of experience in nutrition coaching and meal planning, Dr. Hart is passionate about helping people build lasting habits around food. She is the author of two of our cornerstone eBooks:
📘 The Path to Healthy Eating
📘 The Power of Superfoods
Dr. Hart’s approach focuses on balance, sustainability, and the science behind nourishing your body the right way.
Who We Are
Our Mission
No fluff. No fads. Just powerful insights written for real people who want to feel their best—naturally.
Why Choose Great Healthy?
✅ Digital & Instant – Download and read anytime, anywhere. Perfect for busy lifestyles.
✅ No Medical Jargon – Clear, friendly, and focused on what matters.
✅ Results-Oriented – Every book is designed to help you take immediate, practical steps toward better health.
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