Colorado Runner - Colorado's running news, events and results source

Recent research has revealed that weight training may provide significant protective benefits for the brains of older adults, especially in those at risk for cognitive decline, such as individuals with mild cognitive impairment (MCI).

Boulderthon, presented by PUMA, has announced new courses for the 2025 running event taking place on Sept. 28. Both the marathon and half marathon routes will take participants on new journeys to some of Boulder’s most popular and highly regarded training routes.

For Colorado runners, missing a run isn’t just a skipped workout; it’s a quiet break in the daily rhythm, one that can stir up frustration, cabin fever, or that creeping fear of losing hard-won fitness.