Remember the old playground trick where the boys would challenge the girls to touch their elbows together behind their backs in order to get them to stick their boobs out? This is basically the weight-room version of that, except now you're challenging yourself.
Why you should do it: This simple exercise strengthens your upper back, shoulders, and core while giving you a nice stretch through your chest. It's also a great move to encourage perfect posture.
How to do it: Grab a pair of dumbbells and stand with feet hip-width apart. Bend your elbows, bringing the dumbbells together in front of you at waist height. Maintain a 90-degree bend in your elbows as you slowly open your hands as far out as you can (like you're a flasher in a trench coat). Keep your elbows in tight, roll your shoulders back, and stick your chest out. Return arms back to center.
