Slouched shoulders are sometimes a
bad habit for many people who have
office jobs, or work at a computer or
on the telephone. If you have a
tendency to round your upper back,
exercises that retract the shoulder
blades and stretch the chest and front
of the shoulders will help.

When standing for long periods of time,
check that your abdominal  muscles are
pulled in and your hips are slightly
tucked under with your knees relaxed.
Wearing high heels can encourage a
sway back which can result in back pain
and fatigue. And finally, check your
posture whenever you pass by a mirror
or a reflective window --- it's a good
reminder to keep your back straight
throughout the day.