Trendy workouts may be top of mind, but one question always remains: How much exercise per week do you actually need to be ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." POP QUIZ: HOW many reps and ...

Stand with your feet about shoulder-width apart, holding the bar, using a shoulder-width grip. Squeeze your glutes, abs, and shoulder blades. Keep your torso tight. Curl the weight up, moving only at ...