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.
Featured · 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
longevity
Berberine vs. Metformin for Anti-Aging: What the Longevity Research Actually Says
Both berberine and metformin activate AMPK — a cellular pathway strongly implicated in aging. But the longevity evidence behind each is very different. Here's what the research shows and what it doesn't.
May 30, 2026 · 8 min read
supplementation
Berberine vs. Metformin for Weight Loss: What the Research Actually Shows
Both berberine and metformin produce modest weight loss in clinical trials. But the mechanisms differ, the populations differ, and one requires a prescription. Here's what the evidence actually says.
May 30, 2026 · 8 min read
nutrition
Complete List of Foods With Seed Oils (The One You'll Actually Use)
The problem isn't your cooking oil. It's the 40 other products in your kitchen that contain seed oils without announcing it. Here's the full category-by-category list.
May 25, 2026 · 9 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
nutrition
Which Restaurant Chains Use Seed Oils? The List You Need to Know
You've cleaned up your kitchen. But every time you eat out, you're handing control back to the restaurant. Here's exactly which major chains cook in seed oils — and the few that don't.
May 25, 2026 · 8 min read
nutrition
Seed Oils in 'Healthy' Foods You're Probably Still Eating
You cut seed oils from your cooking. You switched to olive oil and butter. But you're probably still consuming significant quantities of oxidized linoleic acid every day — hidden in foods marketed to health-conscious men. Here's where it's hiding.
May 4, 2026 · 10 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