
Speaker | Podcaster | Creator | Coach

For more than 25 years, I’ve worked with men and women who want to stay strong, capable, energized, and fully engaged in life — especially as they move through their 40s, 50s, 60s, and beyond.
I started my career as a personal trainer in 1998, long before “biohacking” became a buzzword and before most people were talking about the role strength, nutrition, hormones, recovery, metabolic health, and biomarkers play in how we age.
Over the years, one thing became clear: what worked for you in your 20s and 30s doesn’t always work the same way after 40.
You can’t simply eat less, train harder, sleep less, and expect your body to keep cooperating.
The goal has to change from chasing a number on the scale to building a body and a life that continues to perform.
That philosophy is what led me to co-found Arena Health Optimization, a high-performance health and longevity clinic built for people who aren’t interested in quietly declining with age.
At Arena, we take a more complete look at what’s happening beneath the surface through comprehensive labs and biomarkers, hormone optimization, metabolic health, GLP-1 oversight when appropriate, strength and nutrition strategy, recovery, supplements, and individualized protocols.
Because feeling “off” isn’t something you should automatically accept as part of getting older.
I believe the second half of life can be some of your strongest years — but it requires understanding your body, knowing your numbers, and having a strategy built for where you are now.
Outside of Arena, I host the Healthy A.F. / Healthy After Fifty Podcast, where I challenge outdated ideas around diet, fitness, metabolism, and aging. I also co-host The Next 40 with my wife, Danielle, where we have honest conversations about health, relationships, purpose, aging, and what it really looks like to build the next chapter of your life intentionally.
Everything I do comes back to one idea:
Stay in the Arena.
Keep building strength. Keep protecting your health. Keep showing up for the people and experiences that matter to you.
My work is about helping people create the health, energy, resilience, and physical capacity to do exactly that — for decades to come.
Restore energy, focus, libido, and sleep
Build lean muscle without burnout or overtraining
Improve hormones, resilience, and long-term vitality as you age and more!

Available for keynote talks, panels, podcast interviews, and long-form conversations in 2026.
Popular Topics Include:
Why Carbs Aren’t Making You Fat
Arena Health Optimization: BHRT, Peptides, Personalized Support
Get Fit & Metabolically Healthy Over 40
Biohacking, Strength, Longevity & Performance
Lifestyle, Health & Long-Form Interviews

"The person and program to inspire anyone to take real, meaningful action towards longevity and health"
"Zane Griggs is the real deal and the whole package. He has an encyclopedic breadth of knowledge alongside a curiosity to continue researching new information. His own personal path and years in the world of health and fitness give him the hands-on experience with what has lasting, positive impact and how to deliver it in practical terms. Add to this, Zane’s natural charisma and passion to improve people’s lives, and you have the person and program to inspire anyone to take real, meaningful action towards longevity and health" - Susan Egan


"From 302 to a healthy 195"
"Special thanks to one of my closest friends and fitness/health coach, Zane Griggs. For over a decade you have been there for me and been vital to my health, fitness and wellness. Your remote coaching program has resulted not just a transformation from 302 pounds to a healthy 195 pounds, you have created a sustainable and enjoyable lifestyle change. Thank you again Zane!!" - Eric Fletcher


"Highly recommended for anyone seeking meaningful change."
“Zane Griggs is an exceptional fitness coach who delivers results. His tailored approach, blending science with practicality, ensures clients achieve their goals efficiently and sustainably. With a keen eye for detail and a passion for health, Zane empowers individuals to transform their lives through fitness. He is the epitome of excellence in the fitness industry! Highly recommended for anyone seeking meaningful change.” - Aaron Wenzel, M.D.


"His expertise brought a fresh perspective and pushed my boundaries in ways I hadn't anticipated"
"As a lifelong athlete, I thought I had my fitness regimen down to a science. But as I've gotten older, it's become more and more difficult to maintain progress, let alone achieve new goals. That was until I started working with Zane. His expertise brought a fresh perspective and pushed my boundaries in ways I hadn't anticipated. His program not only emphasized my strengths but also got me doing things I would never do on my own. Zane's guidance extends beyond the gym, offering nutritional advice that enhanced my performance and recovery. Now in my 40's and two years into training with Zane, I've reached new fitness goals, remained injury free and am setting record times in races that I haven't seen since my late 20's. To anyone looking to elevate their game, I highly recommend Zane. His dedication and expertise has been pivotal in helping me achieve and surpass my fitness goals." - Adam Sansiveri


"I am 55 years old and, quite honestly, in the best shape of my life."
Zane has been my personal trainer for over 13 years. During this time, my workout routine and diet have changed accordingly, which is one of the many things I appreciate about Zane's training. He doesn't get "stuck". He is constantly doing research about how to achieve the best health possible, no matter your age. He truly wants to help people live their best lives and be as healthy as possible.
I am 55 years old and, quite honestly, in the best shape of my life. I may have been thinner in my younger years, but I definitely wasn't stronger. Developing muscle mass is not easy at 55. Zane has taken the time and energy to perfect my strength training routine and eating habits so that I can retain muscle mass, even as a 55-year-old female. -Stacy Brickell, Ph.D

No spam. Just clear thinking for life after 40.