Fitness — CrossFit, HIIT and strength programs

American fitness culture runs on variety: CrossFit boxes, Planet Fitness chains, Peloton bikes in living rooms, garage gyms with a squat rack and a barbell. Evidence-based programming has won the argument — progressive overload, sufficient protein, sleep quality and consistency beat any supplement or hack, while compound lifts still anchor serious strength work. The fitness industry loves fads, but the basics have not changed in decades. From PPL splits to full-body routines, from Zone 2 cardio to sprint intervals, the right program depends on goals and schedule. Training pairs with nutrition and recovery protocols.