Fitness

3 articles

Habit Formation: Why It Takes 18 to 254 Days and How to Track It

A plain-spoken look at what the science says about building lasting habits — from Charles Duhigg's cue-routine-reward loop to James Clear's four-step model — plus the free tracker that keeps you honest.

The Two-Shoe System Nike Built for HYROX Athletes

The Hybrid Fly and Hybrid RN split the job between race day and training, each carrying different foam, plate, and traction tech for distinct phases of competition.

The Five-Rep Window: What Actually Drives Muscle Growth

Forget rep schemes and tempo tricks — the science of hypertrophy comes down to one variable most lifters get wrong.