OnFitness Magazine Articles
Smart Fitness. Stronger Living.
Explore evidence-based articles on training, nutrition, recovery, health, and longevity — written for adults who want to build strength, move well, and stay active for life.
Surfing Fitness After 70: Training, Recovery & Longevity Lessons from Joseph Grassadonia
At 73, Joseph Grassadonia is still surfing Hawaii’s North Shore. Discover how strength training, intermittent fasting, and recovery help him stay strong, pain-free, and energized.