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Sponsor Content: ASICS

How to Win The Long Run with Marcus Rentie

In your 30s, you're still in your prime as a runner, but this is a critical decade to dial in your training and start running smarter. Why? Beneficial hormones begin to fall in your 30s, so adding strength work and "prehab" routines will help you reduce injury risk, race faster, and improve body composition. And because it becomes increasingly difficult to add muscle mass in your 40s, now is the time to develop good habits that can set you up for a lifetime of healthy, injury-free running. Learn more here