Evidence-based fitness  ·  No fluff, just results
FitBlow
Training & Routines

The Muscle Mass Imperative: Why Building and Preserving Lean Tissue Is the Single Most Important Investment You Can Make in Your Future Self

Why might building muscle be the single best investment you can make in your future health? Dr. Brad Schoenfeld, Dr. Stuart Phillips, and Dr. Gabrielle Fundaro explain how lean tissue drives metabolic health and longevity, and debate how much protein — and…

FitBlow Editorial · Sep 18, 2026 · 4 Min Read
Read the Analysis → The Muscle Mass Imperative: Why Building and Preserving Lean Tissue Is the Single Most Important Investment You Can Make in Your Future Self
Research Reviews View All Reviews →
Research Reviews
Wearables and Fitness Tracking: How Accurate Are Your Device's Calories, Heart Rate, and Recovery Scores Really?
Sep 2026
Research Reviews
Stretching Before Bed, Cold Showers at Dawn: Which Recovery Rituals Have Evidence and Which Are Just Vibes
Sep 2026
Research Reviews
The Science of Soreness: What DOMS Actually Is, What Causes It, and Why It's a Terrible Proxy for a Good Workout
Sep 2026
Research Reviews
Fitness Guilt Is Making You Worse, Not Better: The Neuroscience of Self-Criticism After a Missed Session
Sep 2026
Latest
Training in Your 20s, 30s, 40s, and Beyond: How the Optimal Environment for Exercise Shifts as Your Biology Does
Consistency & Motivation

Training in Your 20s, 30s, 40s, and Beyond: How the Optimal Environment for Exercise Shifts as Your Biology Does

Should your training routine change decade by decade — or does good fitness advice stay the same no matter your age? Dr. Kelly Starrett, Dr. Jen Esquer, and…

FitBlow Editorial· Sep 18, 2026· 4 Min Read
The Sunlight Deficit: How Chronic Vitamin D Insufficiency Is Silently Capping Your Strength, Immunity, and Recovery
Nutrition & Supplements

The Sunlight Deficit: How Chronic Vitamin D Insufficiency Is Silently Capping Your Strength, Immunity, and Recovery

With up to 42% of U.S. adults vitamin D deficient, is a lack of sunlight quietly capping your strength, immunity, and recovery? Dr. Michael Holick, Dr. Jennifer L.…

FitBlow Editorial· Sep 18, 2026· 4 Min Read
The Commute as Training: How to Turn Dead Time Between Home and Work Into a Legitimate Fitness Strategy
Home Workouts
The Commute as Training: How to Turn Dead Time Between Home and Work Into a Legitimate Fitness Strategy
Sep 16, 2026·4 Min
The Antagonist Superset: The Training Technique That Cuts Your Gym Time in Half Without Sacrificing a Single Pound of Strength
Training & Routines
The Antagonist Superset: The Training Technique That Cuts Your Gym Time in Half Without Sacrificing a Single Pound of Strength
Sep 15, 2026·4 Min
The Multivitamin Question: Does the Most Purchased Supplement in the World Actually Do Anything for People Who Already Eat Reasonably Well?
Nutrition & Supplements
The Multivitamin Question: Does the Most Purchased Supplement in the World Actually Do Anything for People Who Already Eat Reasonably Well?
Sep 15, 2026·4 Min
The Retirement Fitness Crisis: Why Suddenly Having All the Time in the World to Exercise Makes Most People Stop Completely
FitBlow's Take
The Retirement Fitness Crisis: Why Suddenly Having All the Time in the World to Exercise Makes Most People Stop Completely
Sep 15, 2026·4 Min
Isometric Training: The Most Underresearched Form of Strength Work That Rehabilitation Science Has Known About for Decades
Featured Analysis
Isometric Training: The Most Underresearched Form of Strength Work That Rehabilitation Science Has Known About for Decades
Sep 14, 2026·4 Min
The Fiber Gap: Why the Single Most Important Dietary Variable for Long-Term Health Is the One Nobody Talks About
Nutrition & Supplements
The Fiber Gap: Why the Single Most Important Dietary Variable for Long-Term Health Is the One Nobody Talks About
Sep 14, 2026·3 Min
Longevity Protocols View All Protocols →
01
The Longevity Paradox of Elite Athletes: Why Playing Sport at the Highest Level Doesn't Always Mean Living Longer

Elite athletes look like the picture of health—but does peak performance actually translate to a longer life? Dr. Andrew Murray, Dr. Lisa Lewis, and…

02
The Sitting-to-Standing Test: A 90-Second Assessment That Tells You More About Your Future Health Than Most Annual Checkups

A 90-second test might reveal more about your future health than your annual bloodwork. Dr. David P. Walsh, Dr. Kelly Starrett, and Dr. Michael…

03
The Balance Test That Predicts Your Risk of Early Death — and How to Train for It

A simple single-leg stand may predict your risk of early death. Dr. Michael Greger, physiologist Dr. Steven Cheung, and physiotherapist Dr. Karen Lichtman explain…

04
VO2 Max Is the New Cholesterol: Why Cardiorespiratory Fitness Is the Most Underrated Predictor of How Long You'll Live

Could VO2 max predict how long you'll live better than cholesterol does? Dr. Peter Attia, Dr. Iñigo San Millán, and Dr. Mike Mentzer explain…