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The BioAge Index™
Welcome to The BioAge Index - the show for business owners, executives and high performers who want more energy, less drag and a younger biological trajectory.
I’m Grant Hutchby, creator of REVO and the Turnback Time system.
Our mission is simple:
Reclaim as many years of optimal life as possible, in as many people as possible, as accurately as possible.
Chronological age does not tell the full story. Your sleep, energy, stress, training, recovery and consistency are already creating a direction of travel.
The BioAge Index™ helps you understand that trajectory, find your biggest drag and track improvement over time.
It is directional, not a clinical diagnosis.
Subscribe for videos on biological age, performance, recovery, longevity science and the Turnback Time system.
Get your BioAge Index™ here:
https://turnback-time.com/quiz
Set your baseline. Find your drag. Track your trajectory. Live better, longer.
The BioAge Index™
Episode 50: Why Fat Loss Stalls After 40 | The Thyroid Hormone Most Men Ignore
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Stubborn fat after 40 is a discipline problem. They’re wrong.
In this episode of Longevity Masters, I break down the real driver behind energy, metabolism, and fat loss for male entrepreneurs: the thyroid.
The thyroid is your body’s metabolic sales manager.
It decides whether energy is spent or conserved.
When it’s working well, fat is converted into usable energy.
When it’s mismanaged, the body holds onto energy and progress stalls.
Most men respond the wrong way.
They train harder.
They eat less.
They push more stress into the system.
But chronic over training, poor sleep, and aggressive calorie restriction can actually suppress thyroid output and slow metabolism.
This isn’t a willpower problem.
It’s a management problem.
In this episode, I explain:
• Why thyroid function controls metabolic pace
• Why over training can stall fat loss
• Why cutting more calories often backfires
• The role sleep and recovery play in energy production
• Why resting heart rate is the best metric to track thyroid health
• How consistent routines improve metabolic rhythm
Your body works like a business.
Energy is revenue.
The thyroid is the sales manager that controls the flow.
Manage it properly and performance compounds.
Fix the rhythm.
Train with intention.
Recover properly.
Watch now. Then apply it.
🌐 Connect & Level Up
Discover your biological age trajectory with our diagnostics quiz here:
https://turnback-time.com/quiz