Feeling worn out, drained, and low on energy after 40 is common, but is it normal? In this episode of The Fitness Confessional, Redha debunks the myth that aging naturally leads to a drop in energy. He explores how lifestyle habits, not age, are often the real culprits behind fatigue and shares actionable advice on how men over 40 can reclaim their strength and vitality.
KEY TAKEAWAYS
After 30, muscle mass naturally declines, a process that accelerates after 40. Since muscle is metabolic tissue that regulates blood sugar and hormones, losing it leads to feeling weaker and more fatigued.
Skipping meals and overeating in the evening creates unstable blood sugar levels, leading to energy crashes. A structured eating plan is essential for sustained energy.
Stress from work, family, and poor lifestyle choices triggers cortisol, which hinders muscle building and fat loss by putting the body into ‘survival mode’.
Random workouts are less effective and riskier as you age. A consistent, planned strength training routine 2-4 times a week improves circulation, hormone health, and sleep quality.
Understanding the difference between laziness and true exhaustion is key. Adequate sleep and recovery time are just as important as the workouts themselves for long-term health.
BEST MOMENTS
"The truth is, most of the time that tired, drained feeling isn't coming from age, it's coming from lifestyle habits that slowly chip away at your energy without you even knowing it."
"Muscle isn't just about looking strong; muscle is metabolic tissue."
"It's like trying to run a car where the petrol supply keeps stopping and starting." (on poor nutrition patterns)
"Your body doesn't understand if that stress is coming from food, or from work, or from pressure. What your body will do is put you in survival mode."
"Getting older doesn't mean getting weaker; it just means training and living smarter."
HOST BIO
Redha Zertal is a strength coach and fitness educator who specialises in helping men over 40 rebuild their strength, energy, and confidence.
With over a decade of coaching experience, Redha has worked with hundreds of busy professionals, entrepreneurs, and fathers who want to lose fat, build muscle, and improve their health without extreme training programmes or restrictive diets.
As the founder of RZ Fitness in Formby, UK, Redha became known for his practical, results-driven approach to strength training and sustainable fitness for men in midlife.
Through The Fitness Confessional podcast, Redha shares the lessons he has learned from years of coaching men navigating the realities of life after 40 — including stress, demanding careers, family responsibilities, and changing metabolism.
His mission is simple:
To help men build stronger bodies, clearer minds, and healthier lives long into their 40s, 50s, and beyond.
Redha’s coaching philosophy focuses on:
• Strength training for longevity
• Sustainable fat loss and nutrition
• Building muscle after 40
• Improving energy, focus, and resilience
His message is clear: fitness after 40 isn’t about extremes — it’s about consistency and smart training.
LINKS:
Website: https://rzfitness.co.uk/
Facebook: https://www.facebook.com/RZFitnessFormby
Instagram: https://www.instagram.com/rzfitness_formby/
YouTube: https://www.youtube.com/@rzfitness