Mental Toughness Always Happens Outside the Comfort Zone
To Achieve Anything, You Have to Get Outside of the Comfort Zone
(and get comfortable being uncomfortable)
Our brain has one job if you really think about it. Keep us from hurting ourselves and surviving. Discomfort is, unfortunately, the way to build mental toughness; however, our brains tend to have the first say in whether we push through thoughts of staying comfortable, safe, and pain-free.
It's a common internal struggle: is your body truly giving out and needs rest, or is your brain shielding you from discomfort? Learning to tell physical fatigue from mental resistance is a skill that even top athletes need to sharpen regularly.
Here is a question I answered on a recent LIVE QA on YouTube: (click)
Here is how to tell the difference and decide whether to push through, pivot, or rest.
The "10-Minute" Rule (Give the Warmup a Try)
The most reliable way to know the difference is to simply start. Commit to a 10-minute warm-up at a low intensity. I make it to the workout and let the warmup decide for me. Usually (9/10), the warmup wakes me up, clears the fog in my brain, and loosens my body for training. However, there are days when I know I should pull back (fatigue, muscle-heavy, elevated heart rate, pain). I have made this mistake of pushing through many times to either eventually break (injury) or push myself to illness and inevitable rest and recovery. Try this:
- If it’s Mental: Once the blood starts pumping and the endorphins kick in, the "fog" usually lifts. You’ll find your rhythm and realize your body was ready all along.
- If it’s Physical: After 10 minutes, you still feel "heavy," your joints feel stiff, or your heart rate is unusually high for a low effort. This is a clear signal from your central nervous system to back off.
Physical Fatigue vs. Mental Resistance
Save this list of symptoms of over-training. This may help you audit your current state. Consider rest if the physical fatigue is real.
When training hard, especially those preparing for a Special Ops level selection program in their future, multiple challenging workouts in a week always require a strict recovery regimen. That means your sleep, nutrition for fuel, nutrition for recovery, electrolytes / hydration, recovery days, and a smart balance of training using split routines that allow for muscle group recovery ALL have to be in perfect alignment. When any of those get neglected, you will start to see the signs of over-training or under-recovery start to show themselves, usually as lack of energy to train and decreased performance. But there are many more symptoms when you need to pull the reins on yourself and simply follow the axiom - LESS IS MORE. Here are some of them:
NOTE: Beginners are susceptible to these over-training symptoms too as it is easy to do too much, too soon, too fast when getting started.
Call it over-training, under-recovery, but it really just over-stressed. When your workouts start to negatively affect your mood, it has entered the central nervous system and is becoming a chronic form of stress. Not only is a rest day needed, but maybe several. That means reducing weight lifted, calisthenics reps, miles run, intensity of all workouts, and purely focus on all of the recovery mentioned above. Do a de-load day or two (mobility day), and you will see your performance come back, and you may even reach new personal records.
The Decision Matrix
Once you’ve identified the type of fatigue, use this guide to make the call:
- Mentally Drained, Physically Fresh: TRAIN. In fact, a moderate workout is often the cure for mental fatigue. It acts as a "reset" for your brain and lowers cortisol levels.
- Physically Sore, Mentally Driven: PIVOT. This is the danger zone for injury. Don't do the heavy lifting or the sprint session. Switch to "Active Recovery"—walking, mobility work, or very light technique drills.
- Both Mentally and Physically Exhausted: REST. If you push here, you aren't "building character"; you are digging a hole for overtraining syndrome and suppressed immunity.
Know Your "Resting Heart Rate" and Grip Strength - If you have a smartwatch or a way to check your pulse in the morning, use it. A resting heart rate that is significantly higher than your average is the most objective "data point" that your body is still recovering from previous stress.
Grip strength using a dynometer - Squeeze a baseline hydraulic hand dynamometer to measure grip strength, measured in pounds per square inch (PSI). If you see a decrease is normal grip strength, you could be over-training.
Resilience and Durability: These traits involve more than just handling a single day's training decision. It’s about adapting positively to adversity and learning from each experience, becoming stronger on the other side. Resilient individuals demonstrate flexibility in their thinking and actions, using failures as learning experiences (not failures) for personal and professional growth. The ability to maintain optimism and persistence even in the face of repeated challenges sets them apart. It is a mindset, a Never Quit Mindset.
OPTIONS: Book, eBook, Audio Book, and Video Training Course
Here is a list of what we do at StewSmithFitness.com
Core Mission
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Tactical Fitness Training For the Candidate / Recruit: Specializing in preparing individuals for military, special ops, law enforcement, and firefighter selection programs (getting you "TO and THROUGH" training).
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Functional Training for Both Active Duty / Recruits: Utilizing a seasonal tactical fitness periodization system that balances longer workouts of running/rucking, swimming, and calisthenics during the Spring/Summer when days are longer. Then, the focus shifts in the Fall/Winter to lifting (Cals/cardio maintenance) when the days are shorter/colder. This process has 25 years of proven success building tactical athletes who improve in all areas of fitness: strength, power, speed, agility, endurance, muscle stamina, mobility, flexibility, and grip.
Becoming an Asset for All Types: Even non-tactical athletes want to be of use in situations that require some level of fitness to get through the day. Be an asset, not a liability, in potentially dangerous situations, whether natural or man-made. Fitness can be a common denominator in successfully enduring life-or-death scenarios.
Specific Programs & Courses
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The Ageless Athlete (Fitness Over 50): A 22-week program designed for beginners to advanced trainees looking to regain fitness, flexibility, and energy.
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Tactical Fitness Over 40: After training people for over 25 years now, many who started with me in the early 2000s are now in their 40s and beyond. Learning how to shift training to remain an asset while also offering longevity, flexibility, and mobility is central to this 52-week program. (4-part series)
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Tactical Fitness Course: An 80-minute course on preparing for Spec Ops selection, getting TO and THROUGH the toughest military special ops’ programs using this two-phase system.

Seasonal Tactical Fitness Periodization - A 25 Year proven system to become a tactical athlete.
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The Never Quit Mindset Book and Course: The "Never Quit Mindset" book and course is a deep dive into building constructive habits that incrementally improve discipline, build mental toughness, and foster a Never Quit Mindset in anything you want to do.
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Specialized Workout Plans: Specific, tailored programs for Navy SEAL (Phases 1-4), SWCC, Army (SF/Ranger/Airborne), USMC MarSOC / (RECON), Air Force (PJ/CCT), Coast Guard, Law Enforcement (FBI/DEA/FLETC), Fire Fighter, and general fitness too for beginners and advanced athletes alike.

Resources and Content
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Extensive Content Library: Over 1,000 free articles, 200+ podcasts, and social media content (YouTube, TikTok, Instagram) featuring Spec Ops swim critiques and LIVE QA sessions.
- FREE Local Training for those preparing to serve! Check out HeroesofTomorrow.org for our location and schedule.

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NEW SKOOL.com Tactical Fitness Community
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Educational Materials: Over 40 options for eBooks, videos, printed books, podcasts (200+), and online video courses.
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Apps: Pushup Push, Pullup Push, FBI workout, and Navy SEAL exercise apps (iPhone/Android).
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LIVE QA Sessions Each Week: Monday and Tuesday, 9 am EST on social media platforms (YouTube, Instagram, Facebook) and Skool.com Tactical Fitness community.
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Online Coaching: Personalized programming based on specific goals, equipment, and your time availability.
- Membership Site: Access to hundreds of weeks of training, unpublished workouts, and exclusive content, weekly newsletter sent to subscribers with the week's latest articles, videos, and workouts (beginner/intermediate, and advanced special ops prep workouts).
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Extensive Content Library: Over 1,000 free articles, 200+ podcasts, and social media content (YouTube, TikTok, Instagram) featuring Spec Ops swim critiques and LIVE QA sessions.
Discover the Secret to Unlocking Your Best Health After 50 (latest program developed)
As you cross the wonderful milestone of 50, you might find that your body doesn’t quite bounce back the way it used to. You’re not alone in this—many men and women in your age group are searching for ways to revive their fitness levels without feeling overwhelmed. That’s where longtime coach and fitness writer Stew Smith’s newest book, "The Ageless Athlete: Fitness Over 50," comes into play. This book may just be the spark you need to ignite your fitness journey.
Truth is, there are people over 60 and 70 doing this workout. Even the advanced section. It works and will help you progress from beginner to intermediate to advanced.

Have you been thinking about getting back in shape but don’t know where to start?
Imagine waking up each day with more energy, flexibility, and the drive to embrace life head-on. Stew Smith, a seasoned fitness expert with 56 years of experience, has crafted a program specifically for guys like you—men who may feel overwhelmed by fitness options or unsure what’s suitable for their age. With his 22-week plan tailored to beginners, intermediates, and advanced practitioners, you will find exactly what you need to suit your current fitness level.
Learn The Never Quit Mindset Method
The ability to maintain optimism and persistence even in the face of repeated challenges sets them apart. It is a mindset, a Never Quit Mindset.

OPTIONS: Book, eBook, Audio Book, and Video Training Course
New Tactical Fitness Training Course!
Getting TO the training does not guarantee you get THROUGH the training. Learn about the two phases of tactical fitness you need to develop thoroughly before getting to BUDS. Check out the Online Course - Getting TO and THROUGH Special Ops Selection.
Training is What We Do:
Need Programming for Fitness Tests and Beyond? We are all about getting you TO and THROUGH your future training program. See how that works.
New Tactical Fitness Training Course!
Getting TO the training does not guarantee you get THROUGH the training. Learn about the two phases of tactical fitness you need to develop thoroughly before getting to BUDS. Check out the Online Course - Getting TO and THROUGH Special Ops Selection.
Who is Stew Smith? Coach, Trainer, Author, Podcaster
I'm the former Navy SEAL that special ops candidates go to for books, ebooks and online coaching to prepare themselves to get to and through intense tactical assessment and selection programs and qualify for service in their chosen tactical profession. See More at StewSmithFitness.com
Where to Find More Information About Optimal Performance Training Programs
When you start training again, consider the seasonal tactical fitness model. I call it A WAY to train, and obviously not the only way to train. But it offers the opportunity to never neglect your weaknesses, helps with flexibility and mobility, but will also put you at a level of physical abilities where you are happy with your overall ability to just about anything. We have a system where the seasons dictate our training. When it is nicer outside, we tend to run and do more calisthenics. When it is colder and not so nice, we lift more, run, less, and still maintain our outdoor activities with shorter runs and rucks. Check it out: Seasonal Tactical Fitness Periodization System.
Online Coaching Options
Online PT CLUB - Weekly Workouts created personally for you.
New Member's Only Content / Services Program!
If you want access to years' worth of workouts, many of the top eBOOKs, favorite workouts of the week, a free fitness APP, a closed Facebook Group, a video/picture library of exercises, and more access to LIVE Q/A sessions, check out the Stew Smith Fitness Members Section.
The dashboard below has the links to all the information, archives, videos, and links to workouts, podcasts, live Q and A lessons.
Consider this! - A Membership Program and Gain Access to Exclusive Content
(click for Fitness Club Dashboard - members only)
