Spending a lot of time at a computer or at a desk can create a bad posture that not only looks unattractive, but is also unhealthy for your spine. Do the posture check every hour: sit up straight, press your shoulders down and slightly back to open chest , then lean slightly so your shoulders are lined up over your hips, lift your chin slightly and line your ears up over your shoulders, then center your head over your shoulders. Feels good!