Founder & author
Matthew David
Certified Personal Trainer and founder of STHENO Fitness.
Practical fitness guidance for real life
Matthew created STHENO to give people the clarity and direction of good coaching without requiring them to organize their lives around fitness. His editorial work focuses on training, nutrition, recovery, and the decisions that make a plan sustainable.
STHENO articles explain established fitness principles, identify uncertainty, and distinguish general education from individualized medical care. Recommendations are framed as practical starting points rather than guarantees.
Articles by Matthew
How to Start Working Out When You Don’t Know Where to Begin
Start smaller than your motivation suggests: two repeatable full-body sessions beat an elaborate plan you cannot sustain.
Read →getting startedHow Many Days a Week Should You Work Out?
Two to four well-designed days cover most goals; the right number is the one your recovery and schedule support.
Read →getting startedThe Best Workout Schedule Is the One You Can Actually Keep
A schedule becomes effective through repetition, not novelty.
Read →getting startedHow Long Should a Good Workout Take?
Most productive sessions fit in 35–75 minutes when exercise selection and rest are intentional.
Read →fat lossHow Fat Loss Actually Works
Fat loss requires an energy deficit over time, while food quality, protein, training, sleep, and environment affect how sustainable it is.
Read →fat lossHow Fast Should You Lose Weight?
A moderate pace protects training quality and makes course correction easier.
Read →fat lossWhy Your Weight Can Go Up Even When You’re Losing Fat
Water, food mass, sodium, carbohydrate, and menstrual-cycle changes can hide a real fat-loss trend.
Read →fat lossHow to Lose Fat Without Sacrificing Muscle
Strength training, sufficient protein, and a moderate deficit are the core muscle-retention tools.
Read →muscle strengthHow Much Training Do You Need to Build Muscle?
Begin with enough challenging weekly sets to progress, then add only when recovery and performance support it.
Read →muscle strengthDo You Need to Train to Failure?
Most growth can happen close to failure; taking every set to failure adds fatigue that is not always useful.
Read →muscle strengthHow Progressive Overload Actually Works
Progressive overload is a long-term pattern of increased challenge, not an obligation to add weight every workout.
Read →muscle strengthWhy Your Strength Has Stopped Increasing
Plateaus are diagnostic: review technique, programming, recovery, nutrition, and the time scale before changing everything.
Read →muscle strengthDo You Need to Change Exercises to Keep Making Progress?
Keep useful exercises long enough to learn and measure them; change when fit, pain, equipment, or stagnation gives a reason.
Read →muscle strengthThree Days vs. Four Days vs. Five Days: How Much Should You Train?
Frequency distributes work; it does not create results independently of weekly dose and consistency.
Read →nutritionHow Much Protein Do You Actually Need?
A daily range around 1.6–2.0 g/kg is a practical starting point for many healthy training adults.
Read →nutritionCalories and Macros: What Matters Most?
Energy balance shapes weight trend; protein and food pattern help shape performance, composition, and adherence.
Read →nutritionCarbs Are Not the Enemy: What They Actually Do for Training
Carbohydrate is a useful training fuel, not a moral category.
Read →nutritionHow to Eat for Fitness Without Following a Rigid Meal Plan
Use repeatable meal anchors and flexible portions instead of pursuing perfect menus.
Read →supplementsCreatine: What It Does, How Much to Take, and What It Doesn’t Do
Creatine monohydrate can modestly support repeated high-intensity performance; it does not replace training.
Read →supplementsProtein Powder: Useful Tool or Expensive Necessity?
Protein powder is convenient food, not a requirement or shortcut.
Read →supplementsWhich Workout Supplements Are Actually Worth Considering?
Most people need fewer supplements than marketing suggests; evaluate benefit, dose, testing, cost, and risk.
Read →recoveryHow Much Does Sleep Matter for Strength, Muscle, and Fat Loss?
Sleep affects performance, appetite, learning, and recovery, but one poor night does not erase progress.
Read →recoveryWhat to Do When You Miss a Workout
Resume the plan without punishment; rearrange only when it improves the rest of the week.
Read →recoveryHow to Keep Training When You Travel
Preserve the habit with short, equipment-flexible sessions and lower expectations for progression.
Read →recoveryFitness After 40: What Actually Needs to Change?
The principles stay stable; warm-up, recovery, progression rate, and individual constraints deserve closer attention.
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