Your Metabolism Isn’t Broken - You’re Just Missing This episode artwork

EPISODE · Apr 1, 2026 · 17 MIN

Your Metabolism Isn’t Broken - You’re Just Missing This

from The Fitness Confessional · host Redha Zertal

Today, Redha challenges the common belief among men over 40 that their metabolism is ‘broken’. He explains that while it may feel harder to lose weight and maintain energy, your metabolism is simply responding to changes in your environment and lifestyle. Redha breaks down the five key factors influencing metabolism, muscle mass, daily movement, nutrition, sleep, and stress, and offers practical advice on how to optimise each. By focusing on strength training, consistent movement, and proper recovery, men can rebuild their strength and confidence without resorting to extreme diets. KEY TAKEAWAYS Your metabolism is an adaptable system that responds to your lifestyle and environment, not a fixed mechanism that breaks with age. Muscle tissue burns energy even at rest; a decrease in muscle mass over time is a primary reason for a slowing metabolism. Total daily physical activity, including walking and standing, significantly impacts energy expenditure more than just a few gym sessions a week. Consistently eating too few calories can lead the body to conserve energy, further slowing the metabolism and hindering weight loss. Quality sleep and stress management are essential for hormonal balance, which regulates hunger signals and energy levels. BEST MOMENTS "Your metabolism isn’t broken. But it might not be working the way it used to." "Muscle is metabolically active tissue. That means it burns energy even when you are not exercising." "You eat less and you burn less, your body goes into survival mode." "A small change can make a big difference." "The best way to put hormones back into balance is by sleep, as simple as this." 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

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