Add Yahoo as a preferred source to see more of our stories on Google. But what exactly is the 5x5 workout, and why does it work so well? The beauty of the 5x5 workout lies in its simplicity and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Meet the expert: Michael Hamlin, CSCS, is a strength and conditioning specialist and the founder of ...

After months (maybe years) of performing three sets of 12 reps on repeat, your muscles are likely craving a fresh—and heavier—training routine. One path forward: the 5x5 workout plan. The ...