You might be surprised how much you're already hitting this valuable muscle group. Here's how to avoid going overboard.
M ost people know where the abs are in the body—sometimes known as the six-pack muscles—but few are so familiar with the deep ...
How-to: Lie down on a weight bench with a dumbbell in each hand and bend your elbows at 90-degree angles. Extend your arms and lift the weights straight up in the air. Hold for 1 to 2 seconds, then ...