Exercise to help any physical imbalances

AS a Fitness Trainer it is my job not only to get people jumping up and down and keeping fit and strong, but to implement exercises and stretches to help fix any physical imbalances.
Times have changed and so have job roles, as 40-50 years ago, jobs were more physical and kept our grandparents fairly fit and strong. These days many of us have desk jobs and are sat hunched over a computer all day. Ever wonder why your back is consistently tight, and your neck aches? The human body was not designed to be sedentary for several hours.
You will naturally lean to one side to control your computer mouse, therefore your spine is consistently tilted, are you getting the picture? Go to a large mirror, turn to the side and take a look at your posture.
Is your upper back starting to curve like a question mark? Then it is time to implement some important exercises. Here is one:
• Place a mat or a towel on the floor. Lay face down and position both of your hands either side of your head.
• Keeping your neck in neutral position, lift your upper body off the floor, squeeze the shoulder blades together and lower it slowly.
• Aim for a two second count up and down and take care not to jolt your neck.
• Your lower body should not lift at all, focus is on the upper back muscles.