Here is another great exercise tip from Rochelle Rice, President of In Fitness & In Health and the creator of the Plus-Size Exercise Technique.
This is a great stretch for the chest.
Sit squarely in your chair.
Reach your arms back to hold each side of your chair, palms facing in.
Lean slightly forward toward the computer screen and bring the shoulder blades together.
Inhale through the nose, expanding the chest.
Exhale through the mouth keeping the chest open.
Repeat the breath sequence 3-5 times.
You should feel the stretch across the front of the chest out toward the shoulders.
Release the arms and rest the palms on your thighs before getting back to work!