The VitalWhys Journal
Articles
Long-form pieces on longevity, training, sleep, and living deliberately. No fluff. Written for people who treat health like it matters.
zone 2
Heart Rate Zones by Age: The Complete Reference Table
All five heart rate training zones, calculated for every age from 20 to 70. Find your numbers, understand what each zone does, and know which one you should be spending most of your time in.
May 25, 2026 · 11 min read
apparel
Your Workout Clothes Are Made of Plastic. Here's Which Brands to Know.
Nike Dri-FIT. Lululemon Luon. Gymshark's signature fabric. Under Armour HeatGear. They have different names, different price points, and one thing in common: they're all plastic. Here's the full brand breakdown and what it actually means for your health.
May 25, 2026 · 9 min read
zone 2
The Exact Zone 2 Heart Rate Formula for Your Age
Every trainer has a Zone 2 formula. Most of them are wrong for you specifically. Here's what the research actually says about how to find your aerobic threshold — and why fixed percentages mislead more people than they help.
May 4, 2026 · 10 min read
muscle
The Muscle Loss Nobody Talks About After 30
You lose roughly 1% of your muscle mass every year after 30. That sounds manageable until you see the strength numbers — which decline two to four times faster. By your 50s, the compounding effect is significant. Most men don't act on this until it's already expensive to reverse.
May 4, 2026 · 9 min read
supplements
Creatine Is Not Just for Bodybuilders. It's for Your Brain.
Most people think creatine is a gym supplement for guys trying to get bigger. The research says something different — creatine is one of the most studied compounds in sports science, and its benefits go well beyond muscle. Here's what you're missing.
May 3, 2026 · 6 min read
strength
Grip Strength: The Longevity Marker Hiding in Your Handshake
Researchers studying longevity keep landing on the same surprising predictor: how hard you can squeeze. Grip strength turns out to be a proxy for overall muscle health, cardiovascular fitness, and biological aging. Here's why it matters and how to improve it.
May 3, 2026 · 6 min read
fitness
Rucking: The Best Exercise You're Probably Not Doing
Walking with weight on your back sounds too simple to matter. The research and the military both say otherwise. Rucking builds strength, burns serious calories, improves cardiovascular fitness, and is easier on your joints than running. Here's why it deserves a spot in your routine.
May 3, 2026 · 6 min read
fitness
VO2 Max: The Single Number That Predicts How Long You'll Live
Forget cholesterol. Forget BMI. The strongest predictor of all-cause mortality isn't a blood marker — it's your cardiorespiratory fitness. Here's what VO2 max actually measures and why improving it might be the most important thing you do this year.
May 3, 2026 · 6 min read
strength
The Case for Lifting Weights After 30 (It's Not About Looks)
Most people think lifting is about aesthetics. After 30, that's the wrong reason — and the wrong frame. Here's what's actually at stake.
April 15, 2026 · 7 min read