Four Pillar Fitness Insights Banner featuring a 2D illustration of Strength Coach  Stephan Earl
Four Pillar Fitness Insights Banner featuring a 2D illustration of Strength Coach  Stephan Earl

4P Fitness Insights

Explore practical, science-backed insights on strength, mobility, nutrition, recovery, longevity, and today’s biggest fitness trends. Use the category filters or search bar below to quickly find the guidance, answers, and topics that matter most to you.

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Longevity, Recovery, Trends and Myths Stephan Earl Longevity, Recovery, Trends and Myths Stephan Earl

The Longevity Blueprint: Peptides for the "Over 40" Athlete

Peptides are trending in fitness, recovery, and longevity, especially for active adults over 40. This Four Pillar Fitness Insights article explains what peptides are, why people are interested in them, and why strength training, nutrition, recovery, medical guidance, and realistic expectations still matter most for aging well.

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Longevity, Recovery, Trends and Myths Stephan Earl Longevity, Recovery, Trends and Myths Stephan Earl

Peptides Trending in 2026: What You Need to Know

Peptides are one of the biggest health and fitness trends, but the hype often moves faster than the facts. This Four Pillar Fitness Insights article explains what peptides are, why they are popular, what questions to ask, and why medical guidance, recovery, nutrition, strength training, and realistic expectations are essential.

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