Evidence-based articles on strength training and muscle growth that dig into individual studies and meta-analyses. Readers get detailed, research-grounded explanations of topics such as hypertrophy-strength relationships, isometric training and training volume.

Michael Easter, author of The Comfort Crisis, publishes three posts a week on health, fitness, nutrition, mindset and performance, mixing podcast interviews, personal essays and a monthly roundup of studies and ideas. A reader gets practical takeaways and stories about resilience, longevity and living better.

A newsletter from a former New York Times journalist and health coach covering strength training, nutrition and longevity, with video demonstrations, quick whole-food recipes and occasional audio essays. It mixes critical commentary on health media and longevity hype with practical training and cooking guidance.

A marathon-focused newsletter aimed at runners chasing sub-three-hour times, mixing personal race reports and training advice with data-driven analysis of big-city marathon results and sub-3 finisher trends. Readers get firsthand training lessons alongside statistics on race fields such as Melbourne and Chicago.