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Longevity & Mindset from FitForty, shaped by its General Fitness focus.
Latest Posts
View all →Creatine After 40: The Only Supplement the Data Actually Supports
You have been skipping creatine because you think it is for 22-year-olds. The reality is, you have been misreading the data for years and it is quietly costing you muscle, cognitive edge, and structural integrity.
Marcus VossMarch 4, 2026Your Grip Strength Predicts Your Lifespan. The Data Is Uncomfortable.
A 140,000-person Lancet study found grip strength predicts mortality better than blood pressure. Here's the mechanism, the numbers, and what to do about it.
Marcus VossMarch 3, 2026The 'Gym Bro' Molecule Is Actually Your Most Important Tool After 40
Creatine isn't just for 22-year-olds chasing a pump. Here's what the peer-reviewed data says about why it belongs in every 40+ longevity protocol — and exactly how to use it.
Marcus VossMarch 3, 2026The VO2 Max Imperative: Why This Number Predicts Your Longevity (And How to Move It)
VO2 Max is the single most predictive longevity biomarker we have — and most 40+ exercisers are training in a way that does almost nothing to move it. Here's the data, the trap, and the protocol.
Marcus VossMarch 2, 2026Sarcopenia Is Not Inevitable. But Your Current Plan Won't Stop It.
You are losing 3–8% of your muscle mass per decade. Here is the mechanism, why most 40+ programs fail to stop it, and the minimum viable protocol that will.
Marcus VossMarch 1, 2026The Sunday Systems Review: You're Training Too Hard. That's Why You're Getting Slower.
February data shows most 40+ athletes are chronically stuck in the gray zone. Here's the Zone 2 case — and the March protocol to fix it.
Marcus VossMarch 1, 2026The Cortisol Tax: How Chronic Stress Is Quietly Dismantling the Body You're Building
Chronically elevated cortisol suppresses testosterone, accelerates muscle catabolism, and blunts recovery. Here's the mechanism — and the minimum effective interventions to reduce the tax rate.
Marcus VossFebruary 28, 2026The Anabolic Resistance Problem: Why Your Protein Target Is Probably 40% Too Low
Your 40-year-old muscle requires 40% more protein to generate the same synthesis response as a 20-year-old's. Here's what that means for your protocol.
Marcus VossFebruary 28, 2026The Static Advantage: Why Boring Holds Are Your Best Investment in Joint Longevity
New 2025 research confirms what I've been preaching for years: low-intensity isometric training builds tendon resilience as effectively as heavy loading—without the mechanical stress. Here's how to implement the "Minimum Effective Dose" protocol.
Marcus VossFebruary 23, 2026The Sleep Architecture Protocol: Why Recovery Is Built in the Dark
You don't get stronger in the gym—you get weaker. The anabolic response happens during sleep. Here's the data on why sleep architecture matters more than your training program, and the three mechanical levers that actually move the needle.
Marcus VossFebruary 22, 2026The Rucking Reality Check: Why Loaded Walking Works (And How Most People Get It Wrong)
Rucking is trending as the workout of 2025, but most coverage is marketing hype. Here's the biomechanical reality: how loaded walking actually works, why it matters for longevity, and the failure points that will break your hardware if you get greedy with the weight.
Marcus VossFebruary 22, 2026